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Nelson Mandela Metropolitan University
1.
van Niekerk, Abraham Johannes.
A comparison of different strategies to control pests and diseases in Brassica spp. production in the Western Cape.
Degree: 2019, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/44122
► Brassica spp. are cultivated all over the world, commercial species include: cabbage, broccoli, kale, kohlrabi and turnip. In this study the focus was on broccoli…
(more)
▼ Brassica spp. are cultivated all over the world, commercial species include: cabbage, broccoli, kale, kohlrabi and turnip. In this study the focus was on broccoli (Brassica oleracea) production in the Western Cape province of South Africa and its economically important pests and diseases: sugar beet cyst nematode (Heterodera schachtii), diamondback moth (Plutella xylostella), white blister (Albugo candida) and clubroot (Plasmodiophora brassicae), and the different methods to control these pests and diseases. The control methods focused on in this study included a commercial chemical control programme, a biological control programme and a holistic approach. Other factors were bio-fumigation and chemical fumigation and different crop rotation practices including rotation crops versus no rotation crops. The experimental design was a strip split plot design, with different pest and disease management strategies as the main plot treatment and fumigation and rotation treatment combinations arranged in strips across the main plot treatments. The main plot design was a randomized complete block with four programmes (Control, Holistic, Chemical and Biological) replicated four times and laid out in a Randomised Complete Block Design (RCBD). The treatment design of the strip plot factors was a 2x2 factorial with two fumigations (fumigated chemically and fumigated biologically) and two rotations (crop rotated and monoculture) randomly allocated across main plot treatments. Each experimental unit consisted of 40 plants. Plants were evaluated weekly for the incidence of white blister and diamondback moth. Incidences of clubroot and white blister infection of heads of broccoli were recorded 78 days after planting. Baseline soil samples were analysed to establish the soil chemical properties. Post-trial soil samples were also analysed to investigate the effect of the different practices and programmes on the soil chemical properties. Nematodes were extracted pre-trial and post-trial, and the effect of fumigation and crop rotation on plant parasitic nematodes and the nematode population diversity investigated. In the post-trial soil chemical analysis, a significantly higher concentration of Na was recorded for the biological programme when crop rotation was included compared to the no rotation treatment. The concentration of K was also significantly higher in the no rotation compared to the rotation treatment. The nematode results showed very high numbers of bacterial feeders in all the samples. Overall nematode diversity was lacking and showed very few fungal feeders, omnivores and predators. The nematode indices for all of the samples showed that nematodes were highly enriched and unstructured. Of the plant parasitic nematodes, only Heterodera spp. were obtained in the pre-trial analysis, and incidences of these nematodes were lower at the end of the trial. Low numbers of other plant parasitic nematodes viz. Pratylenchus, Paratrichodorus and Tylenchorhynchus were reported for the post-trial analysis of the soil. Because of the low…
Subjects/Keywords: Pesticides; Pests – Control; Agricultural pests; Plant diseases
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APA (6th Edition):
van Niekerk, A. J. (2019). A comparison of different strategies to control pests and diseases in Brassica spp. production in the Western Cape. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/44122
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
van Niekerk, Abraham Johannes. “A comparison of different strategies to control pests and diseases in Brassica spp. production in the Western Cape.” 2019. Thesis, Nelson Mandela Metropolitan University. Accessed March 06, 2021.
http://hdl.handle.net/10948/44122.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
van Niekerk, Abraham Johannes. “A comparison of different strategies to control pests and diseases in Brassica spp. production in the Western Cape.” 2019. Web. 06 Mar 2021.
Vancouver:
van Niekerk AJ. A comparison of different strategies to control pests and diseases in Brassica spp. production in the Western Cape. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2019. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10948/44122.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
van Niekerk AJ. A comparison of different strategies to control pests and diseases in Brassica spp. production in the Western Cape. [Thesis]. Nelson Mandela Metropolitan University; 2019. Available from: http://hdl.handle.net/10948/44122
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
2.
Sakthivel. P.
Determination of effective poison bait carrier for rodent
pests under laboratory and field conditions; -.
Degree: Zoology, 2012, Bharathidasan University
URL: http://shodhganga.inflibnet.ac.in/handle/10603/5673
► Rodents are economically important organisms and of them some are reported to be serious pests destroying crops, fruit gardens, orchards and stored food grains. In…
(more)
▼ Rodents are economically important organisms and of
them some are reported to be serious pests destroying crops, fruit
gardens, orchards and stored food grains. In the present study
under laboratory conditions the preference of chosen grains viz.,
paddy, pearl millet, ragi, green gram, black gram and bengal gram
(in two forms viz., Germinated and Non Germinated) by both sexes of
four species of rodents such as Bandicota bengalensis, Millardia
meltada, Mus booduga and Rattus rattus were studied with two choice
and multiple choice tests. These rodent pests were also subjected
to toxicity tests (acute rodenticide: 1.5% and 2% Zinc phosphide
and and chronic rodenticide: Bromadiolone (0.005%); under no choice
and choice tests) by using their preferred grains as a bait base.
The results indicate that in two choice tests that all four species
of rodent pests preferred to consume more quantity of both
germinated cereals and pulses over non-germinated forms and the
difference between them were statistically significant (plt0.01).
Under multiple choice tests, the highest preference by all the four
species of rodent pests was for green gram, pearl millet, ragi and
paddy. Further, by considering the cost of each of these four
grains, any one among them which is the cheapest, could be
recommended to be used as a bait base for the control of all four
species of selected rodents under field conditions. The results on
acute toxicity (zinc phosphide) and chronic toxicity (bromadiolone
0.005%) produced cent percent mortality of among most of the test
animals (all four species of rodents) under nochoice and choice
tests. Based on laboratory evaluation results on acute and chronic
toxicity studies, the three germinated cereals were further
evaluated under field conditions in the chosen crop fields (Samba
season paddy crop, Black gram, Sunflower and Cotton). Of the two
rodenticides used in the present study for the control of rodent
pests in Samba season paddy crop fields
References given
Advisors/Committee Members: Neelanarayanan, P.
Subjects/Keywords: rodent pests; Zoology
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APA ·
Chicago ·
MLA ·
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APA (6th Edition):
P, S. (2012). Determination of effective poison bait carrier for rodent
pests under laboratory and field conditions; -. (Thesis). Bharathidasan University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/5673
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
P, Sakthivel.. “Determination of effective poison bait carrier for rodent
pests under laboratory and field conditions; -.” 2012. Thesis, Bharathidasan University. Accessed March 06, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/5673.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
P, Sakthivel.. “Determination of effective poison bait carrier for rodent
pests under laboratory and field conditions; -.” 2012. Web. 06 Mar 2021.
Vancouver:
P S. Determination of effective poison bait carrier for rodent
pests under laboratory and field conditions; -. [Internet] [Thesis]. Bharathidasan University; 2012. [cited 2021 Mar 06].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/5673.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
P S. Determination of effective poison bait carrier for rodent
pests under laboratory and field conditions; -. [Thesis]. Bharathidasan University; 2012. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/5673
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

North Carolina State University
3.
Bock, Mariah Jane.
Insect Management in Burley Tobacco in Non-traditional Areas of North Carolina.
Degree: MS, Entomology, 2010, North Carolina State University
URL: http://www.lib.ncsu.edu/resolver/1840.16/6347
► Since the end of tobacco price supports in 2004, tobacco growers in eastern North Carolina have been investigating new agricultural enterprises, including burley tobacco. It…
(more)
▼ Since the end of tobacco price supports in 2004, tobacco growers in eastern North Carolina have been investigating new agricultural enterprises, including burley tobacco. It is unknown if the
pests and diseases common to flue-cured tobacco will be equally problematic for burley tobacco growers in eastern North Carolina. Research was conducted to determine the insect and disease pressures on burley tobacco. Studies were conducted over a two year period at the Central Crops Research Station, the Lower Coastal Plains Research Station, North Carolina State University greenhouses, and in commercial tobacco fields in eastern North Carolina counties.
Incidence of tomato spotted wilt virus (TSWV), an economically important plant virus transmitted by thrips, was examined. Surveys of commercial burley tobacco fields revealed higher TSWV incidence in burley tobacco compared to flue-cured tobacco. Results from field studies also showed TSWV incidence was higher in burley tobacco compared to flue-cured tobacco under several agronomic conditions. Tobacco plants treated with imidacloprid had lower TSWV incidence than those plants left untreated. Tobacco plants transplanted temporally near major thrips flights had higher TSWV incidence than those transplanted to avoid major thrips flights. In the greenhouse, mechanically inoculated burley tobacco generally had the highest rate of TSWV infection; infection rates decreased as plant age increased. Colored adhesive traps were used to determine the attraction of thrips to varying colors of burley, flue-cured and Maryland tobaccos. Color is most likely only a minor contributing factor to higher TSWV incidence in burley tobacco.
The presence of Heliothis virescens, the hornworm complex (composed of Manduca sexta and Manduca quinquemaculata), and Epitrix hirtipennis in burley and flue-cured tobaccos was compared. H. virescens showed preference for flue-cured tobacco over burley tobacco; hornworm complex larvae and E. hirtipennis showed no preference for either tobacco type. H. virescens numbers were higher in plots treated with imidacloprid, while E. hirtipennis numbers were lower in these plots. Hornworm complex larvae showed no preference for treated or untreated plots. Hornworm complex larvae exhibited no preference for a particular transplant date, while E. hirtipennis numbers were lower in plots assigned a late transplanting date. H. virescens showed preference for different transplant dates at the two locations.
The effect of M. sexta larvae in open-air burley curing structures on cured burley yield was assessed. Larvae that enter the curing structure near the fourth instar cause the greatest yield loss to curing burley tobacco plants.
Advisors/Committee Members: Clyde E. Sorenson, Committee Chair (advisor), Mark R. Abney, Committee Member (advisor), Hannah J. Burrack, Committee Member (advisor).
Subjects/Keywords: burley tobacco; pests
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bock, M. J. (2010). Insect Management in Burley Tobacco in Non-traditional Areas of North Carolina. (Thesis). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/6347
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Bock, Mariah Jane. “Insect Management in Burley Tobacco in Non-traditional Areas of North Carolina.” 2010. Thesis, North Carolina State University. Accessed March 06, 2021.
http://www.lib.ncsu.edu/resolver/1840.16/6347.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Bock, Mariah Jane. “Insect Management in Burley Tobacco in Non-traditional Areas of North Carolina.” 2010. Web. 06 Mar 2021.
Vancouver:
Bock MJ. Insect Management in Burley Tobacco in Non-traditional Areas of North Carolina. [Internet] [Thesis]. North Carolina State University; 2010. [cited 2021 Mar 06].
Available from: http://www.lib.ncsu.edu/resolver/1840.16/6347.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Bock MJ. Insect Management in Burley Tobacco in Non-traditional Areas of North Carolina. [Thesis]. North Carolina State University; 2010. Available from: http://www.lib.ncsu.edu/resolver/1840.16/6347
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia
4.
Chijikwa, Mutibo.
Effects of intercropping systems on incidence and damage to cotton by Diaparopsis Castenea Hampson(lepidoptera:Arctiidae)in Magoye,Mazabuka district of Zambia
.
Degree: 2013, University of Zambia
URL: http://hdl.handle.net/123456789/2711
► The Red bollworm, Diaparopsis Castenea Hampson, is an insect that has become a major pest of cotton in Zambia. This study was conducted in Magoye,…
(more)
▼ The Red bollworm, Diaparopsis Castenea Hampson, is an insect that has become a major pest of cotton in Zambia. This study was conducted in Magoye, Mazabuka district, Southern province of Zambia. The main objective of the study was to determine the effects of different types of intercropping patterns occurring among cotton farmers in Magoye area and their effects on the incidence and extent of damage caused to cotton by Diaparopsis Castenea. The study was conducted in two parts during the 2010/11 farming season. The first part involved conducting a survey among 80 randomly selected farmers in Magoye during the months of September and October 2010. This was to determine the different types of intercropping systems being used in the study area. Participatory rural appraisal (PRA) techniques, using questionnaires, interviews, focus group discussions (FGD), and transect walks were used to identify the various intercropping systems. The second part was an experimental field study to assess the relationships of the various intercropping systems, pest incidence and severity. The field trial was conducted at Cotton Development Trust (CDT) in Magoye, Zambia. It was laid out in a randomized complete block design (RCBD) with four replications. The six intercropping systems were randomized in main plots. Plot sizes were 4.8 m x 9 m with intercrops planted in between each row of cotton. Cotton cultivar CDT II (Gossypium hirsutum sp) was sown by hand in 100 cm spaced single rows on 1st November 2010. Maize (Zea mays L.), and Sorghum (Sorghum vulgares L.) were sown two weeks after cotton planting. Pigeon pea (Cajanus cajan L.) and Cowpea (Vigna unguuiculata L.) were planted three weeks after cotton sowing and Sunflower (Helianthus annus L.) was planted five weeks after cotton sowing. Observations on incidence of Diaparopsis Castenea, incidences of natural enemies, damage caused by Diaparopsis Castenea, average boll weight, plant height and seed cotton yield were recorded. The data collected were subjected to analysis of variance (ANOVA) and means were compared using Bonferroni’s test. The survey revealed that farmers in Magoye area were using both chemical and cultural practices to control pests in their cotton fields. The chemicals used were mainly synthetic in nature as none of the farmers were recorded to be using naturally made pesticides. The survey further showed that all farmers interviewed were combining chemical control with various cultural practices such as crop rotation or intercropping. Only 28% of the farmers interviewed were using intercropping as a pest control strategy. The intercrops were grown either as a strip/single row pattern alongside the cotton crop or in between each row of cotton. Cowpeas and beans were the most common combination (22%) of intercrops used, while maize was only used by one percent of the farmers. Analysis of variance (ANOVA) on the field trial showed significant reduction in incidence of Diaparopsis Castenea eggs (P<0.001), damage to cotton bolls (P<0.001) and seed cotton yield (P<0.001)…
Subjects/Keywords: Cotton – Diseases and pests
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chijikwa, M. (2013). Effects of intercropping systems on incidence and damage to cotton by Diaparopsis Castenea Hampson(lepidoptera:Arctiidae)in Magoye,Mazabuka district of Zambia
. (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/2711
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chijikwa, Mutibo. “Effects of intercropping systems on incidence and damage to cotton by Diaparopsis Castenea Hampson(lepidoptera:Arctiidae)in Magoye,Mazabuka district of Zambia
.” 2013. Thesis, University of Zambia. Accessed March 06, 2021.
http://hdl.handle.net/123456789/2711.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chijikwa, Mutibo. “Effects of intercropping systems on incidence and damage to cotton by Diaparopsis Castenea Hampson(lepidoptera:Arctiidae)in Magoye,Mazabuka district of Zambia
.” 2013. Web. 06 Mar 2021.
Vancouver:
Chijikwa M. Effects of intercropping systems on incidence and damage to cotton by Diaparopsis Castenea Hampson(lepidoptera:Arctiidae)in Magoye,Mazabuka district of Zambia
. [Internet] [Thesis]. University of Zambia; 2013. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/123456789/2711.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chijikwa M. Effects of intercropping systems on incidence and damage to cotton by Diaparopsis Castenea Hampson(lepidoptera:Arctiidae)in Magoye,Mazabuka district of Zambia
. [Thesis]. University of Zambia; 2013. Available from: http://hdl.handle.net/123456789/2711
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia
5.
Taulu, Stephen.
Breeding for weevil resistance in Maize(Zea mays L.)
.
Degree: 2014, University of Zambia
URL: http://hdl.handle.net/123456789/3555
► Post harvest losses caused by the maize weevil (Sitophilus zeamais, Motschulsky) in maize aggravate food insecurity among small scale farmers. Maize weevil resistant genotypes are…
(more)
▼ Post harvest losses caused by the maize weevil (Sitophilus zeamais, Motschulsky) in maize aggravate food insecurity among small scale farmers. Maize weevil resistant genotypes are
desirable for overcoming storage difficulties and also avoid the use of chemical pesticides hence considered to be more environmental friendly. A study was conducted with an overall objective
of establishing the determinants of weevil resistance in maize. The specific objectives of the
study were to characterize genotypes for traits related to weevil resistance in maize and also to estimate the genetic basis of the mechanisms of weevil resistance in maize. Field experiments
were done at GART using a North Carolina Design II with three replications and also at Nanga research in Mazabuka. Laboratory experiments were conducted at Zambia Agriculture Research Institute (ZARI) Entomology laboratory and University of Zambia, Food Science Department
where insect bioassay and the biochemical tests were done respectively. In the insect bioassay grain hardness, grain weight loss, median development period, F1 progeny emergence and the Dobie index of susceptibility indices were measured. Protein and the Phenolic content were
determined under the biochemical tests among genotypes. They were highly significant differences in all the twenty seven genotypes evaluated. Results showed that Parental survival
accounted for 78.5 % of the total variation, F1 emergency (8%) and grain hardness (0.5%), and
all these traits would still be important secondary traits to determine the resistance or susceptibility of genotypes in developing the host plant resistance of genotypes. Phenolic content
was strongly and positively correlated (r = 0.423***) with grain hardness providing a good measure of resistance and it accounted for the 10.9 % of the total variation. Genotype 60N was classified as being resistant since it had the lowest numbers of F1 progenies (2.3) produced and
genotype 78N had a highest number of F1 progeny emergency of 98. Genotype 1N had a least median development period of 24 days while 60N had a highest median development period of
80.7 days. Weight grain loss for genotype 78N had a highest weight loss of 19.1% compared to
genotype 60N which had a 4.3 % loss. Genotypes were significantly different (p < 0.05) in the Dobie’s index of susceptibility which ranged from 0.4 to 8.3. Out of the twenty seven genotypes,
twenty three genotypes were found to be relatively resistant, three were moderately resistant and one genotype was moderately susceptible. The study showed the possibility of breeding maize
genotypes with an increased resistance. From the GCA effects it was established that the
susceptible lines had a decreasing Phenolic content but increasing Phenolic content resulted in increased resistance. Non-additive gene action played significant roles in determining resistance
among the traits measured. This means that population improvement will have to be done through cyclic selection since the traits were showing the heterotic response…
Subjects/Keywords: Corn-Diseases and pests-Zambia
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Taulu, S. (2014). Breeding for weevil resistance in Maize(Zea mays L.)
. (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/3555
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Taulu, Stephen. “Breeding for weevil resistance in Maize(Zea mays L.)
.” 2014. Thesis, University of Zambia. Accessed March 06, 2021.
http://hdl.handle.net/123456789/3555.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Taulu, Stephen. “Breeding for weevil resistance in Maize(Zea mays L.)
.” 2014. Web. 06 Mar 2021.
Vancouver:
Taulu S. Breeding for weevil resistance in Maize(Zea mays L.)
. [Internet] [Thesis]. University of Zambia; 2014. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/123456789/3555.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Taulu S. Breeding for weevil resistance in Maize(Zea mays L.)
. [Thesis]. University of Zambia; 2014. Available from: http://hdl.handle.net/123456789/3555
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tasmania
6.
Heaton-Sutton, John.
The potential for the integrated control of the two spotted mite (Tetranychus urticae) Koch in Tasmanian glasshouses.
Degree: 1982, University of Tasmania
URL: https://eprints.utas.edu.au/21759/1/whole_Heaton-SuttonJohn1982_thesis.pdf
Subjects/Keywords: Pests; Mites
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Heaton-Sutton, J. (1982). The potential for the integrated control of the two spotted mite (Tetranychus urticae) Koch in Tasmanian glasshouses. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/21759/1/whole_Heaton-SuttonJohn1982_thesis.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Heaton-Sutton, John. “The potential for the integrated control of the two spotted mite (Tetranychus urticae) Koch in Tasmanian glasshouses.” 1982. Thesis, University of Tasmania. Accessed March 06, 2021.
https://eprints.utas.edu.au/21759/1/whole_Heaton-SuttonJohn1982_thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Heaton-Sutton, John. “The potential for the integrated control of the two spotted mite (Tetranychus urticae) Koch in Tasmanian glasshouses.” 1982. Web. 06 Mar 2021.
Vancouver:
Heaton-Sutton J. The potential for the integrated control of the two spotted mite (Tetranychus urticae) Koch in Tasmanian glasshouses. [Internet] [Thesis]. University of Tasmania; 1982. [cited 2021 Mar 06].
Available from: https://eprints.utas.edu.au/21759/1/whole_Heaton-SuttonJohn1982_thesis.pdf.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Heaton-Sutton J. The potential for the integrated control of the two spotted mite (Tetranychus urticae) Koch in Tasmanian glasshouses. [Thesis]. University of Tasmania; 1982. Available from: https://eprints.utas.edu.au/21759/1/whole_Heaton-SuttonJohn1982_thesis.pdf
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Nelson Mandela Metropolitan University
7.
Dhliwayo, Tererayi.
Alternative products in the inhibition of te plant pathogen scleroyinia sclerotiorum on potato production.
Degree: MTech, Faculty of Science, 2008, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/941
► White mold caused by Sclerotinia sclerotiorum attacks a wide host range of broad-leafed plants which includes potatoes. Current control is limited to the use of…
(more)
▼ White mold caused by Sclerotinia sclerotiorum attacks a wide host range of broad-leafed plants which includes potatoes. Current control is limited to the use of chemicals, but biological control has emerged as an eco-friendly alternative. For the study, 19 bacterial strains and 18 fungal strains obtained from soil samples taken from a potato field naturally infested with the pathogen S. sclerotiorum were tested for the effects on S. sclerotiorum mycelium growth and sclerotia viability in vitro. A total of eight bacterial strains and six fungal strains proved to be effective in the inhibition of S. sclerotiorum mycelium growth on PDA plate using a dual culture technique. These antagonistic microbes were six Bacillus subtilis, Bacillus pumilis, Bacillus marisflavi, Fusarium solani, Fusarium equiseti, Fusarium chlamydosporum, Aspergillus niger, Aspergillus insuetus and Penicillium citrinum. There was a significant difference (p<0.05) in the interaction between S. sclerotiorum mycelium growth and the time after inoculation with a S. sclerotiorum mycelium plug for both bacterial and fungal soil isolates. An additional sclerotia viability test was carried out using four of the eight antagonistic bacteria, and six of the antagonistic fungi. The results showed that two Bacillus species, namely B. pumilis and B. marisflavi can effectively reduce sclerotia viability. The other two bacteria (both B. subtilis), recorded low percentage reduction in sclerotia viability. As for the six antagonistic fungi, the viability test proved to be less effective in determining sclerotia viability. However, the result of this study supports the use of bio-control agents, not only because they are environmentally friendly, but because they are also an effective way of controlling the plant pathogen, S. sclerotiorum
Advisors/Committee Members: Celliers, P R.
Subjects/Keywords: Potatoes – Diseases and pests
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Dhliwayo, T. (2008). Alternative products in the inhibition of te plant pathogen scleroyinia sclerotiorum on potato production. (Masters Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/941
Chicago Manual of Style (16th Edition):
Dhliwayo, Tererayi. “Alternative products in the inhibition of te plant pathogen scleroyinia sclerotiorum on potato production.” 2008. Masters Thesis, Nelson Mandela Metropolitan University. Accessed March 06, 2021.
http://hdl.handle.net/10948/941.
MLA Handbook (7th Edition):
Dhliwayo, Tererayi. “Alternative products in the inhibition of te plant pathogen scleroyinia sclerotiorum on potato production.” 2008. Web. 06 Mar 2021.
Vancouver:
Dhliwayo T. Alternative products in the inhibition of te plant pathogen scleroyinia sclerotiorum on potato production. [Internet] [Masters thesis]. Nelson Mandela Metropolitan University; 2008. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10948/941.
Council of Science Editors:
Dhliwayo T. Alternative products in the inhibition of te plant pathogen scleroyinia sclerotiorum on potato production. [Masters Thesis]. Nelson Mandela Metropolitan University; 2008. Available from: http://hdl.handle.net/10948/941

University of Kashmir
8.
Rishi, N.D.
Studies on the comparative Morphology of the alimentary
canal in some Agricultural insect pests of Kashmir and
modifications due to food and feeding habits;.
Degree: 2014, University of Kashmir
URL: http://shodhganga.inflibnet.ac.in/handle/10603/24014
► The work studies the morophology of alimentary canal of insects is extremely varied due to the enormous variety of food stuffs that insects consume This…
(more)
▼ The work studies the morophology of alimentary
canal of insects is extremely varied due to the enormous variety of
food stuffs that insects consume This variety of food is unique in
the animal kingdom in as much as insects eat and digest vegetable
matter of all kinds had wood cellulose other insects dead animal
carrion honey pollen fruits seeds and even nuts as well as decaying
organic matter animal excreta wool paper etc As a matter of fact
they can eat almost every thing except inorganic rocks stones and
metal etc It may be pointed out that the present studies were
confined to Lepidoptera and Copleoptera since these two
newlineorders contain the most destructive insect posts in
Kashmir
Advisors/Committee Members: Das, S.M..
Subjects/Keywords: Insect-pests; Food; Kashmir
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Rishi, N. D. (2014). Studies on the comparative Morphology of the alimentary
canal in some Agricultural insect pests of Kashmir and
modifications due to food and feeding habits;. (Thesis). University of Kashmir. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/24014
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Rishi, N D. “Studies on the comparative Morphology of the alimentary
canal in some Agricultural insect pests of Kashmir and
modifications due to food and feeding habits;.” 2014. Thesis, University of Kashmir. Accessed March 06, 2021.
http://shodhganga.inflibnet.ac.in/handle/10603/24014.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Rishi, N D. “Studies on the comparative Morphology of the alimentary
canal in some Agricultural insect pests of Kashmir and
modifications due to food and feeding habits;.” 2014. Web. 06 Mar 2021.
Vancouver:
Rishi ND. Studies on the comparative Morphology of the alimentary
canal in some Agricultural insect pests of Kashmir and
modifications due to food and feeding habits;. [Internet] [Thesis]. University of Kashmir; 2014. [cited 2021 Mar 06].
Available from: http://shodhganga.inflibnet.ac.in/handle/10603/24014.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Rishi ND. Studies on the comparative Morphology of the alimentary
canal in some Agricultural insect pests of Kashmir and
modifications due to food and feeding habits;. [Thesis]. University of Kashmir; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/24014
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg
9.
Chilaka, Cynthia Adaku.
A survey of South African commercial feed grade maize for mycotoxins with particular reference to fumonisins using different analytical techniques.
Degree: 2012, University of Johannesburg
URL: http://hdl.handle.net/10210/8057
► M.Tech.
Maize (Zea may) is the third most important cereal in the world serving various purpose of economic importance especially as staple diet to the…
(more)
▼ M.Tech.
Maize (Zea may) is the third most important cereal in the world serving various purpose of economic importance especially as staple diet to the Africans and as a major component of animal feed. Unfortunately, this commodity serves as a suitable substrate for pest and fungi development which may result in the production of mycotoxins. Mycotoxins are secondary metabolites of varying chemical structures produced by filamentous fungi, which may contaminate agricultural commodities either in the field or at storage. Mycotoxins have been implicated to cause several diseases in humans and animals ranging from acute to chronic. This study was designed to determine and quantify the occurrence and levels of mycotoxins in South African feed grade commercial maize. A total of 40 commercial feed grade maize samples were randomly sampled from two factory sites (Factory A and Factory B) of a commercial feed company source from known South African maize producers. The samples were screened for fungi using the conventional method while the mycotoxin screening and quantification was done by thin layer chromatography (TLC) and high performance liquid chromatography (HPLC). In addition to TLC and HPLC, VICAM/HPLC, VICAM/fluorometer, enzyme linked immuno-sorbent assay (ELISA) and lateral flow method were used for determination and quantification of fumonisins. The mycological investigation revealed the occurrence of several fungal species of Fusarium, Aspergillus and Penicillium with Fusarium being the most prevalent (100%). Among the Fusarium spp. were F. verticillioides, F. proliferatum, F. oxysporum and F. graminearum, F. subglutinans, F. chlamydosporum, F. solani, F. poae and F. dimerum. Fusarium verticillioides and F. proliferatum had the highest incidence rate of 89% and 73%, respectively, followed by F. oxysporum (65%) and F. graminearum (48%). The rate of occurrence of A. fumigatus, A. flavus and Penicillium spp. were 45%, 43% and 38%, respectively. Further analysis on the isolated fungal strains proved that over 50% of the fungal spp. were toxigenic. Mycotoxicological study on the samples revealed that the samples were contaminated with fumonisins (FB), aflatoxins B (AFB), ochratoxin A (OTA) and zearalenone (ZEA) on TLC. Mycotoxins levels in the samples were confirmed on HPLC, with the levels ranging from 0.064-1.035 ppm for FB, 0-0.762 ppm for iii AFB, 0-0.194 ppm for OTA and 0-0.135 ppm for ZEA. There was no significance difference on mycotoxin concentration in the feed grade sample between the two factory sites. Results obtained from the VICAM methods, ELISA and lateral flow method for FB determination showed 100% incidence rate of the feed grade maize samples similar to that observed on HPLC. Although ELISA (0.190-2.450 ppm) and lateral flow method (0.350-2.700 ppm) showed higher concentration of FB compared to HPLC (0.064-1.035 ppm), recovery analysis on sample using lateral flow gave high value (85%) comparable to HPLC. Further analyses were performed to determine the cytotoxic potential of the feed grade maize…
Subjects/Keywords: Corn - Diseases and pests; Mycotoxins
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chilaka, C. A. (2012). A survey of South African commercial feed grade maize for mycotoxins with particular reference to fumonisins using different analytical techniques. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/8057
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Chilaka, Cynthia Adaku. “A survey of South African commercial feed grade maize for mycotoxins with particular reference to fumonisins using different analytical techniques.” 2012. Thesis, University of Johannesburg. Accessed March 06, 2021.
http://hdl.handle.net/10210/8057.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Chilaka, Cynthia Adaku. “A survey of South African commercial feed grade maize for mycotoxins with particular reference to fumonisins using different analytical techniques.” 2012. Web. 06 Mar 2021.
Vancouver:
Chilaka CA. A survey of South African commercial feed grade maize for mycotoxins with particular reference to fumonisins using different analytical techniques. [Internet] [Thesis]. University of Johannesburg; 2012. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10210/8057.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Chilaka CA. A survey of South African commercial feed grade maize for mycotoxins with particular reference to fumonisins using different analytical techniques. [Thesis]. University of Johannesburg; 2012. Available from: http://hdl.handle.net/10210/8057
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Nairobi
10.
Sambai, Kevin K.
Effect of temperature on the synchrony of stem borer pests and their associated larval parasitoids
.
Degree: 2016, University of Nairobi
URL: http://hdl.handle.net/11295/97293
► This study was undertaken to establish the effect of temperature on the development and survival of B. fusca, S. calamistis and C. partellus and their…
(more)
▼ This study was undertaken to establish the effect of temperature on the development and survival of B. fusca, S. calamistis and C. partellus and their larval parasitoids The stem borers and the larval parasitoids were reared at 200C, 250C, 280C and 300C and their development time, survival, fecundity and longevity were recorded. These parameters were subjected to analysis of variance (ANOVA) in General Linear Model (GLM). Results showed that development of stem borer larvae varied among different temperature regimes (F3,367=105.3; P<0.0001), B. fusca (F3,451=66.43; P<0.0001), S. calamistis(F3,540=887.8; P<0.0001).C. partellus. Development time of B. fusca larvae decreased with increase in temperature with the longest and shortest time recorded at 200C (78.30 days) and 300C (36.8 days) respectively. In S. calamistis larvae, the development time reduced with increase in temperature with mean larval duration ranging between 34.6 days (300C) to 48.1 days (200C). In C. partellus there was a decrease in larval development time (days) as the temperature increased. The longest development time, 57.4 days, was observed at 200C while the shortest, 22.2 days, was recorded at 300C. There was a significant influence of temperature on the development of C. sesamiae Kitale (F3,139=125.6; P<0.001), C. Sesamiae Mombasa (F3,148=246.1; P<0.001) and C. flavipes (F3,187=719.7; P<0.001). Among C. sesamiae Kitale, mean total development time ranged between 17.8 days (280C) to 29.7 days (200C), while among C. sesamiae Mombasa, the highest and lowest mean total development time varied between 29.4 days (200C) and 17.0 days (280C) respectively. In C. flavipes, mean total development time varied between 15.0 days (300C) and 31.4 days (200C). Temperature affected the host-parasitoid synchrony between stem borers and their associated larval parasitoids as reflected in the variations in respective life table parameters. Biological control of B. fusca, S. calamistis and C. partellus is likely to be affected by changes in temperature. Due to the increased development rate and survival of the stem borers coupled with reduced survival rates of the parasitoids associated with increase in temperature, biological control is likely to be less effective in areas with higher temperatures ranging between 250C to 280C.
Subjects/Keywords: Synchrony of Stem Borer Pests
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sambai, K. K. (2016). Effect of temperature on the synchrony of stem borer pests and their associated larval parasitoids
. (Thesis). University of Nairobi. Retrieved from http://hdl.handle.net/11295/97293
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sambai, Kevin K. “Effect of temperature on the synchrony of stem borer pests and their associated larval parasitoids
.” 2016. Thesis, University of Nairobi. Accessed March 06, 2021.
http://hdl.handle.net/11295/97293.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sambai, Kevin K. “Effect of temperature on the synchrony of stem borer pests and their associated larval parasitoids
.” 2016. Web. 06 Mar 2021.
Vancouver:
Sambai KK. Effect of temperature on the synchrony of stem borer pests and their associated larval parasitoids
. [Internet] [Thesis]. University of Nairobi; 2016. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/11295/97293.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sambai KK. Effect of temperature on the synchrony of stem borer pests and their associated larval parasitoids
. [Thesis]. University of Nairobi; 2016. Available from: http://hdl.handle.net/11295/97293
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
11.
Lutege, Benezeth.
Molecular surveillance of Versinia Pestis DNA from the Fleas and Rodents of Lushoto District of Tanzania.
Degree: 2015, University of Zimbabwe
URL: http://dspace.unza.zm/handle/123456789/3809
► Plague is a zoonotic disease, endemic throughout the world except Australia and Antarctica. The disease is highly infectious in humans. The causative agent is a…
(more)
▼ Plague is a zoonotic disease, endemic throughout the world except Australia and Antarctica. The disease is highly infectious in humans. The causative agent is a gram-negative bacterium, Yersinia pestis (Y. pestis) which, primarily infects a wide range of rodents and is transmitted via flea vectors. The disease persists in many parts of the world with 90% of the plague cases being reported to the World Health Organization each year, come from Africa where public health and living conditions are poor. In Tanzania, plague has been endemic for many years in areas of Lushoto, Mbulu and Karatu districts. In Lushoto the disease has been quiescent for 10 years since 2003, when annual outbreaks were reported from 1980. In order to understand disease dynamics in the hosts and vectors of Lushoto district, this study was initiated. The study was designed to detect Y. pestis DNA in Lushoto district. In some areas of Mbulu and Karatu districts surveillance works revealed the presence of Y. pestis DNA despite the absence of plague outbreaks in the human population. This study was conducted in Lushoto district of Tanzania and involved four villages which had plague outbreaks previously. Live trapping of wild and commensal rodents was done after which rodent tissues and their fleas were collected for DNA extraction. The collected rodents and fleas were identified to genus and species levels. The extracted DNA was subjected to PCR for detection of Y. pestis DNA using primers targeting Y. pestis plasminogen activator gene. A total of 112 rodent tissues and 253 fleas were collected from Gologolo, Mavumo, Viti and Manolo villages in Lushoto district. There were nine species of rodents captured which are Mastomys (33%), Rattus rattus(25.9%), Praomys (14.3%), Lophuromys (14.3%), Grammomys (8%), Beamys (1.8%), Arvicanths (0.9%), Croccidura (1.8%) and Mus (0.9%), while five flea species were collected and these were Xenopsylla spp (39.5%), Ceratophylla (Dinopsyllus) spp (22.5%), Ctenocephalides spp (26.1%), Leptopsylla spp (6.3%) and Echidnophaga spp (5.5%). At the time of this study, no evidence of Yersinia pestis DNA was found neither in fleas nor in rodents, suggesting a quiescent period. During this study two rodents species (Mastomys and Rattus) were identified which have been observed to be plague bacteria reservoirs in other endemic areas. Also the oriental flea (Xenopsylla cheopis) which is the efficient vector in the propagation of Y. pestis was identified. Another flea of significance Dinopsyllus spp was observed.These findings are significant as they put Lushoto district in an re-emergence alert to encounter an outbreak in future due to the presence of important host reservoirs and the effective vectors for Y. pestis.
Subjects/Keywords: Agricultural pests-Tanzania; Rodents; Fleas
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lutege, B. (2015). Molecular surveillance of Versinia Pestis DNA from the Fleas and Rodents of Lushoto District of Tanzania. (Thesis). University of Zimbabwe. Retrieved from http://dspace.unza.zm/handle/123456789/3809
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lutege, Benezeth. “Molecular surveillance of Versinia Pestis DNA from the Fleas and Rodents of Lushoto District of Tanzania.” 2015. Thesis, University of Zimbabwe. Accessed March 06, 2021.
http://dspace.unza.zm/handle/123456789/3809.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lutege, Benezeth. “Molecular surveillance of Versinia Pestis DNA from the Fleas and Rodents of Lushoto District of Tanzania.” 2015. Web. 06 Mar 2021.
Vancouver:
Lutege B. Molecular surveillance of Versinia Pestis DNA from the Fleas and Rodents of Lushoto District of Tanzania. [Internet] [Thesis]. University of Zimbabwe; 2015. [cited 2021 Mar 06].
Available from: http://dspace.unza.zm/handle/123456789/3809.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lutege B. Molecular surveillance of Versinia Pestis DNA from the Fleas and Rodents of Lushoto District of Tanzania. [Thesis]. University of Zimbabwe; 2015. Available from: http://dspace.unza.zm/handle/123456789/3809
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
12.
Moonga, Nzala Miyanda.
Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia.
Degree: 2011, University of Zimbabwe
URL: http://dspace.unza.zm/handle/123456789/261
► The spotted stem borer, Chilo partellus (Swinhoe) is one of the most destructive pests of maize in the warm, low altitude regions of Zambia. A…
(more)
▼ The spotted stem borer, Chilo partellus (Swinhoe) is one of the most destructive pests of
maize in the warm, low altitude regions of Zambia. A study was carried out in
Sinazongwe district, which is located at about 600 metres above sea level in the
Southern Province to determine the incidence of C. partellus, damage to maize plants
and the abundance of its natural enemy, Cotesia flavipes. This study was carried out
during the winter cropping seasons of 2005 and 2006 in four locations where previous
releases of C. flavipes had been made. The locations described by intensity of C. flavipes
released were: locality 1; 500-1000 parasitoids, locality 2; 50,000 parasitoids, locality 3;
100,000 parasitoids and locality 4; non-release. These were classified as low, medium,
high and non-release locations respectively. In each location, maize plants were sampled
from sixteen farmers' fields at three different growth stages, namely; knee height,
tasseling and cob maturity. Ten plants were also randomly collected from each farmer's
fields by destructive sampling to assess severity of C. partellus damage.
Analysis of variance (ANOVA) was carried out to determine if there were any
significant differences across the locations and between plant growth stages. The results
showed significant differences (F=7.74; d.f.=3; PO.001) in incidence of C. partellus
across the locations. Similar significant differences were also obtained among the three
plant growth stages (F=63.59; d.f.=2; PO.001). In addition, significant differences were
obtained in respect to the following damage variables; tunnel length (F=12.04; d.f.-3;
PO.001), damage index (F=16.39; d.f.=3; PO.001) and number of exit holes
(F=100.83; d.f.=3; P<0.001) across the locations. Similarly, significant differences were
also obtained at the three plant growth stages in tunnel length (F=115.54; d.f=2;
PO.001), damage index (F=12.04; d.f.=2; P<0.001) and number of exit holes (F=7.96;
d.f.=2; P<0.001). There were however, no significant differences in leaf damage when a
t- test was carried out to compare damage at knee height and tasseling stages across all
the locations. Similarly, there were no significant differences in the number of
parasitized larvae across the locations and at the three maize growth stages. C. partellus
constituted 94.5% and 95.6% of the total stem borer larvae collected from maize plants,
and the remaining 5.9% and 4.4% were Sesamia calamistis in the 2005 and 2006 winter
cropping seasons, respectively.
Results of the present study confirm that C. partellus is the dominant cereal stem borer
in Sinazongwe district and clearly show that C. flavipes is fairly well established in this
agroecosystem. The results indicate however, that at this level of establishment, C.
flavipes did not adequately suppress stem borer populations possibly due to low
parasitism levels at peak stem borer incidence. Follow up studies might be necessary to
clarify this phenomenon.
Subjects/Keywords: Lepidoptera; Corn – diseases – pests
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Moonga, N. M. (2011). Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia. (Thesis). University of Zimbabwe. Retrieved from http://dspace.unza.zm/handle/123456789/261
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Moonga, Nzala Miyanda. “Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia.” 2011. Thesis, University of Zimbabwe. Accessed March 06, 2021.
http://dspace.unza.zm/handle/123456789/261.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Moonga, Nzala Miyanda. “Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia.” 2011. Web. 06 Mar 2021.
Vancouver:
Moonga NM. Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia. [Internet] [Thesis]. University of Zimbabwe; 2011. [cited 2021 Mar 06].
Available from: http://dspace.unza.zm/handle/123456789/261.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Moonga NM. Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia. [Thesis]. University of Zimbabwe; 2011. Available from: http://dspace.unza.zm/handle/123456789/261
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Victoria University of Wellington
13.
Lovatt, Simon.
New Zealand’s Assistance with Invasive Species Management in the Pacific.
Degree: 2011, Victoria University of Wellington
URL: http://hdl.handle.net/10063/1790
► Invasive species are one of the biggest threats to development and well-being in the Pacific. They have wide-ranging impacts on economies, the environment, and societies;…
(more)
▼ Invasive species are one of the biggest threats to development and well-being in the Pacific. They have wide-ranging impacts on economies, the environment, and societies; in addition to causing USD 1.4 trillion of losses each year. Invasive species are also the primary cause of biodiversity loss on islands which could significantly affect the ecosystem services which Pacific Islanders depend on. Every year New Zealand spends NZD 500 million on biosecurity, and Australia has spent AUD 175 million on a single eradication project. In comparison, in the Pacific there are only six people working fulltime on invasive species issues at a regional level and there is limited funding available.
This thesis assesses the role of four New Zealand agencies that assist with invasive species management in the Pacific: the International Development Group of the Ministry of Foreign Affairs, the Biosecurity New Zealand division of the Ministry of Agriculture and Forestry, the Department of Conservation, and Landcare Research. Together these agencies provide funding, build capacity, offer technical advice, and occasionally implement projects. While there are important gains to New Zealand in assisting the Pacific with invasive species management, such as a reduced biosecurity threat and learning opportunities for staff, the desire to help the region for its own sake is a major driver.
Suggestions for future improvement include having more information on the economic impacts of invasive species in the Pacific, increased coordination between donors, and including invasive species measures in regional trade agreements. It is hoped that New Zealand will continue to play its critical leadership role in invasive species management in the region.
Advisors/Committee Members: Leslie, John.
Subjects/Keywords: Conservation; Biodiversity; Pests; Development
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lovatt, S. (2011). New Zealand’s Assistance with Invasive Species Management in the Pacific. (Masters Thesis). Victoria University of Wellington. Retrieved from http://hdl.handle.net/10063/1790
Chicago Manual of Style (16th Edition):
Lovatt, Simon. “New Zealand’s Assistance with Invasive Species Management in the Pacific.” 2011. Masters Thesis, Victoria University of Wellington. Accessed March 06, 2021.
http://hdl.handle.net/10063/1790.
MLA Handbook (7th Edition):
Lovatt, Simon. “New Zealand’s Assistance with Invasive Species Management in the Pacific.” 2011. Web. 06 Mar 2021.
Vancouver:
Lovatt S. New Zealand’s Assistance with Invasive Species Management in the Pacific. [Internet] [Masters thesis]. Victoria University of Wellington; 2011. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10063/1790.
Council of Science Editors:
Lovatt S. New Zealand’s Assistance with Invasive Species Management in the Pacific. [Masters Thesis]. Victoria University of Wellington; 2011. Available from: http://hdl.handle.net/10063/1790

Michigan State University
14.
Welch, S. M. (Stephen M.,).
The design of biological monitoring systems for pest management.
Degree: PhD, Department of Zoology, 1977, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:41749
Subjects/Keywords: Pests – Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Welch, S. M. (. M. ,. (1977). The design of biological monitoring systems for pest management. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:41749
Chicago Manual of Style (16th Edition):
Welch, S M (Stephen M ,). “The design of biological monitoring systems for pest management.” 1977. Doctoral Dissertation, Michigan State University. Accessed March 06, 2021.
http://etd.lib.msu.edu/islandora/object/etd:41749.
MLA Handbook (7th Edition):
Welch, S M (Stephen M ,). “The design of biological monitoring systems for pest management.” 1977. Web. 06 Mar 2021.
Vancouver:
Welch SM(M,. The design of biological monitoring systems for pest management. [Internet] [Doctoral dissertation]. Michigan State University; 1977. [cited 2021 Mar 06].
Available from: http://etd.lib.msu.edu/islandora/object/etd:41749.
Council of Science Editors:
Welch SM(M,. The design of biological monitoring systems for pest management. [Doctoral Dissertation]. Michigan State University; 1977. Available from: http://etd.lib.msu.edu/islandora/object/etd:41749

Michigan State University
15.
Cespedes Sanchez, Maria Catalina.
Host susceptibility to two peronosporales among cucurbits and beans.
Degree: 2012, Michigan State University
URL: http://etd.lib.msu.edu/islandora/object/etd:1724
► Thesis M.S. Michigan State University. Plant Pathology 2012.
The Order Peronosporales, a group of fungal-like organisms commonly known as the water molds, incite many of…
(more)
▼ Thesis M.S. Michigan State University. Plant Pathology 2012.
The Order Peronosporales, a group of fungal-like organisms commonly known as the water molds, incite many of the most devastating plant diseases worldwide. Two particular peronosperomycetes, Phytophthora capsici Leonian and Pseudoperonospora cubensis (Berk. and Curt.) Rostov., are a major threat for many Michigan vegetable crops. Phytophthora capsici, a limiting factor mainly for cucurbit and solanaceous production, was confirmed to infect snap bean (Phaseoulus vulgaris L.) in Michigan fields. Since dry edible beans are a variant of the snap bean species, we assessed eight dry edible bean cultivars for susceptibility to P. capsici. Different plant parts were inoculated independently with each of two P. capsici isolates. Results obtained in this study indicate that dry edible beans are susceptible to P. capsici under controlled conditions. Cucurbit downy mildew, caused by Pseudoperonospora cubensis is the most devastating foliar disease for cucurbits. Forty-one cucurbit cultigens (i.e., commercial cultivars and plant introductions) from five different genera were assessed for their susceptibility to natural infection by P. cubensis in a Michigan research field during 2010 and 2011. Results confirmed that Cucumis is the most susceptible genus to downy mildew, Citrullus cultigens presented small necrotic lesions, and no visible infection was found on cultigens of Cucurbita moschata and C. pepo.
Description based on online resource; title from PDF t.p. (ProQuest, viewed Mar. 15, 2013)
Advisors/Committee Members: Hausbeck, Mary K, Ngouajio, Mathieu, Hammerschmidt, Raymond.
Subjects/Keywords: Peronosporales; Beans – Diseases and pests – Michigan; Cucurbitaceae – Diseases and pests – Michigan; Beans – Diseases and pests; Cucurbitaceae – Diseases and pests; Plant pathology
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APA (6th Edition):
Cespedes Sanchez, M. C. (2012). Host susceptibility to two peronosporales among cucurbits and beans. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:1724
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Cespedes Sanchez, Maria Catalina. “Host susceptibility to two peronosporales among cucurbits and beans.” 2012. Thesis, Michigan State University. Accessed March 06, 2021.
http://etd.lib.msu.edu/islandora/object/etd:1724.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Cespedes Sanchez, Maria Catalina. “Host susceptibility to two peronosporales among cucurbits and beans.” 2012. Web. 06 Mar 2021.
Vancouver:
Cespedes Sanchez MC. Host susceptibility to two peronosporales among cucurbits and beans. [Internet] [Thesis]. Michigan State University; 2012. [cited 2021 Mar 06].
Available from: http://etd.lib.msu.edu/islandora/object/etd:1724.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Cespedes Sanchez MC. Host susceptibility to two peronosporales among cucurbits and beans. [Thesis]. Michigan State University; 2012. Available from: http://etd.lib.msu.edu/islandora/object/etd:1724
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Florida
16.
Nighswander, Gisele Patricia.
Drivers of Herbivorous Arthropod Pest Resistance in Urban Ornamental Gardens.
Degree: MS, Forest Resources and Conservation, 2019, University of Florida
URL: https://ufdc.ufl.edu/UFE0056192
► Urbanization has occurred at a dramatic rate, driving a number of unfavorable environmental effects on local ecosystems, and designer ecosystems, i.e. those designed to meet…
(more)
▼ Urbanization has occurred at a dramatic rate, driving a number of unfavorable environmental effects on local ecosystems, and designer ecosystems, i.e. those designed to meet human and ecological goals, have been used to mitigate these effects. Ornamental landscaped areas (hereafter referred to as 'ornamental gardens') are a common designer ecosystem in the urban landscape that can potentially be used to provide ecosystem services. Plants in these urban landscapes are also more susceptible to herbivory from arthropod
pests, thereby jeopardizing ecosystem provision. Here I investigate how various plant community characteristics in ornamental gardens affect pest resistance, an important but understudied ecosystem service. I collected information on vegetation, arthropod
pests and their natural enemies from 52 subplots nested within 13 gardens of three master-planned communities of north-central Florida and University of Florida campus at two separate sampling periods, February and September 2018. This nested design allowed me to control for differences among sampling units and the lack of temporal independence.
Advisors/Committee Members: Iannone III,Basil V (committee chair), Dale,Adam G (committee member).
Subjects/Keywords: gardens – pests – services – urbanization
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APA (6th Edition):
Nighswander, G. P. (2019). Drivers of Herbivorous Arthropod Pest Resistance in Urban Ornamental Gardens. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0056192
Chicago Manual of Style (16th Edition):
Nighswander, Gisele Patricia. “Drivers of Herbivorous Arthropod Pest Resistance in Urban Ornamental Gardens.” 2019. Masters Thesis, University of Florida. Accessed March 06, 2021.
https://ufdc.ufl.edu/UFE0056192.
MLA Handbook (7th Edition):
Nighswander, Gisele Patricia. “Drivers of Herbivorous Arthropod Pest Resistance in Urban Ornamental Gardens.” 2019. Web. 06 Mar 2021.
Vancouver:
Nighswander GP. Drivers of Herbivorous Arthropod Pest Resistance in Urban Ornamental Gardens. [Internet] [Masters thesis]. University of Florida; 2019. [cited 2021 Mar 06].
Available from: https://ufdc.ufl.edu/UFE0056192.
Council of Science Editors:
Nighswander GP. Drivers of Herbivorous Arthropod Pest Resistance in Urban Ornamental Gardens. [Masters Thesis]. University of Florida; 2019. Available from: https://ufdc.ufl.edu/UFE0056192

Louisiana State University
17.
Flick, Andrew Jason.
Intraguild Predation: Interactions between Predators, Pathogens, and Their Shared Resources in Crop Pest Communities.
Degree: PhD, Entomology, 2018, Louisiana State University
URL: https://digitalcommons.lsu.edu/gradschool_dissertations/4786
► Crop pest management requires an understanding of the complex interactions among pest species that potentially damage crop yield and species that may be crucial…
(more)
▼ Crop pest management requires an understanding of the complex interactions among pest species that potentially damage crop yield and species that may be crucial for controlling pest species outbreaks. For example, predators, parasitoids, and pathogens are constantly interacting via their shared prey or hosts. Predators may prefer infected prey, which can be easier to catch; however, infected prey may be less nutritious or even lethal for predators. These interactions then dictate the short-term dynamics of host and pathogen as well as between prey and predator. "How these dynamics change as the species in the system change either empirically or theoretically?" is the underlying question in this dissertation.
I conducted a meta-analysis to determine the effects of virus- and fungus-infected prey on predators. Examining experiments with one predator/parasitoid and one pathogen, I quantified life-history responses of predators consuming infected prey across published studies. Predators and parasitoids responded separately to infected prey. True predators had no preference, while parasitoids preferred healthy prey. Both predators and parasitoids had reduced fitness when reared in infected hosts. For example, if the host died from infection before the parasitoid completed development, the parasitoid also died. Predators also had a reduction in fitness when consuming infected prey (i.e., shorter lifespans, fewer offspring produced). I then used lab and field studies to expand on these results.
In the lab, I reared a common agricultural predator, the spined-soldier bug (Podisus maculiventris) on a diet of either healthy or infected prey, which responded similarly to those in my meta-analysis. They suffered increased developmental time and decreased longevity. I also found that predators exhibited preference for infected prey while the prey were alive. When prey were frozen, the predators exhibited no preference for healthy or infected prey. This indicates that prey are likely easier to consume when they are infected. Field studies investigated how predators change disease transmission in their prey. I found that predators increased transmission by decreasing the prey's heterogeneity in susceptibility to the disease. That is, the spread between the least susceptible and the most susceptible host decreased, which increase overall disease transmission. This research extended the results of the meta-analysis from the individual effects to population dynamics.
Finally, I created two mathematical models to show how predators and pathogens interact across multiple generations as compared to the single generation in the field. These models compare and contrast the differences between predator response to prey and the effects the predator response has on disease dynamics. Predators that show a Holling type I response can lead to stable states, while predators exhibiting a type III response lead to cycles exemplified by boom and bust dynamics. Through a meta-analysis, field and lab studies,…
Subjects/Keywords: Disease transmission; baculovirus; crop pests
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Flick, A. J. (2018). Intraguild Predation: Interactions between Predators, Pathogens, and Their Shared Resources in Crop Pest Communities. (Doctoral Dissertation). Louisiana State University. Retrieved from https://digitalcommons.lsu.edu/gradschool_dissertations/4786
Chicago Manual of Style (16th Edition):
Flick, Andrew Jason. “Intraguild Predation: Interactions between Predators, Pathogens, and Their Shared Resources in Crop Pest Communities.” 2018. Doctoral Dissertation, Louisiana State University. Accessed March 06, 2021.
https://digitalcommons.lsu.edu/gradschool_dissertations/4786.
MLA Handbook (7th Edition):
Flick, Andrew Jason. “Intraguild Predation: Interactions between Predators, Pathogens, and Their Shared Resources in Crop Pest Communities.” 2018. Web. 06 Mar 2021.
Vancouver:
Flick AJ. Intraguild Predation: Interactions between Predators, Pathogens, and Their Shared Resources in Crop Pest Communities. [Internet] [Doctoral dissertation]. Louisiana State University; 2018. [cited 2021 Mar 06].
Available from: https://digitalcommons.lsu.edu/gradschool_dissertations/4786.
Council of Science Editors:
Flick AJ. Intraguild Predation: Interactions between Predators, Pathogens, and Their Shared Resources in Crop Pest Communities. [Doctoral Dissertation]. Louisiana State University; 2018. Available from: https://digitalcommons.lsu.edu/gradschool_dissertations/4786

Rutgers University
18.
Gager, Joshua David, 1989-.
The influence of cranberry floral wax on appressorium formation in colletotrichum fioriniae.
Degree: MS, Plant Biology, 2015, Rutgers University
URL: https://rucore.libraries.rutgers.edu/rutgers-lib/47368/
► The effect of cranberry floral wax was tested on appressorium formation rates in Colletotrichum fioriniae, a causal agent of fruit rot on cranberry (Vaccinium macrocarpon).…
(more)
▼ The effect of cranberry floral wax was tested on appressorium formation rates in Colletotrichum fioriniae, a causal agent of fruit rot on cranberry (Vaccinium macrocarpon). Signaling mechanisms regulating appressorium induction vary by pathosystem, and offer potential targets for fungal control measures. Although studies have been done on close relatives, appressorium formation triggers have not been definitively identified in the C. fioriniae – cranberry system. Surface wax from flowers was extracted in chloroform and some of the chemical constituents of the wax were identified by gas-chromatography-mass spectrometry (GC-MS). Spores of C. fioriniae were incubated with surface wax or with pure identified compound from the wax to assess their effect on appressorium formation. Floral wax induced appressorium formation in as little as six hours. The methyl ester of hexadecanoic acid, a monomer of the plant biopolymer cutin, was identified as a wax component that showed strong stimulatory effects in vitro. This is significant, as it points to fungal cutinase production as a potential target of future disease management strategies on cranberry. In addition, no differences in induction iv were found between waxes extracted from resistant and susceptible host genotypes. Further, although hydrophobicity has been shown to induce appressorial formation in other pathogens, it was ruled out as a stimulus here by tests with hydrophobic paraffin wax. Waxes isolated from cranberry fruit throughout the growing season did not induce appressorium formation, though whether this is due to a lack of stimulatory compounds or the presence of inhibitors was not determined and merits further study.
Advisors/Committee Members: Oudemans, Peter (chair), Vorsa, Nicholi (internal member), Gianfagna, Thomas (internal member), Lalancette, Norman (internal member).
Subjects/Keywords: Colletotrichum; Cranberries – Diseases and pests
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Gager, Joshua David, 1. (2015). The influence of cranberry floral wax on appressorium formation in colletotrichum fioriniae. (Masters Thesis). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/47368/
Chicago Manual of Style (16th Edition):
Gager, Joshua David, 1989-. “The influence of cranberry floral wax on appressorium formation in colletotrichum fioriniae.” 2015. Masters Thesis, Rutgers University. Accessed March 06, 2021.
https://rucore.libraries.rutgers.edu/rutgers-lib/47368/.
MLA Handbook (7th Edition):
Gager, Joshua David, 1989-. “The influence of cranberry floral wax on appressorium formation in colletotrichum fioriniae.” 2015. Web. 06 Mar 2021.
Vancouver:
Gager, Joshua David 1. The influence of cranberry floral wax on appressorium formation in colletotrichum fioriniae. [Internet] [Masters thesis]. Rutgers University; 2015. [cited 2021 Mar 06].
Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/47368/.
Council of Science Editors:
Gager, Joshua David 1. The influence of cranberry floral wax on appressorium formation in colletotrichum fioriniae. [Masters Thesis]. Rutgers University; 2015. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/47368/

Rutgers University
19.
Behringer, Gregory.
The genetic characterization of Northeastern Quercus associated Xylella fastidiosa populations.
Degree: PhD, Plant Biology, 2015, Rutgers University
URL: https://rucore.libraries.rutgers.edu/rutgers-lib/48391/
► Xylella fastidiosa is broad-host-range plant pathogen responsible for significant commodity crop damage in much of the Western Hemisphere. Since its description in 1892, focus has…
(more)
▼ Xylella fastidiosa is broad-host-range plant pathogen responsible for significant commodity crop damage in much of the Western Hemisphere. Since its description in 1892, focus has centered around disease associated with Vitis (grape) hosts. Shade tree host studies of X. fastidiosa populations, however, have been both sparse and regionally oriented, making the exploration of infected oak stands an important area for greater understanding of this phytopathogen. To describe novel genetic profiles of the oak associated pathogen, Northeastern and Mid-Atlantic populations were assessed both phylogenetically and with Principal Component Analyses (PCA) and Minimum Spanning Trees (MSN). Polymerase chain reaction (PCR) based locus recoveries identified previously undescribed genetic diversity and phylogenetically separated oak associated populations based on host geography. Expanded analysis of insertion/deletion regions associated with the oak pathogen was also conducted for fine separation of populations relative to phylogenetic recoveries. Together these provided an efficient means to track the spread of the pathogen at the population level. To further explore genetic diversity in understudied X. fastidiosa oak populations, the genome of a Northeastern Quercus palustris associated X. fastidiosa isolate, RNB1, was sequenced and analyzed. Existing isolate comparisons described several novel RNB1 genomic regions, including two potential vir genes, and a Gene Ontology procyclic repeat pathogenesis locus. This work provided the first comparative look at an oak associated X. fastidiosa genome and described its composition relative to well described isolates. A final search for novel population specific markers in X. fastidiosa colonies targeted prophage segments. Thirteen regions across nineteen genomes were qualitatively described, with phage repressor and terminase suggestive of previously confirmed phylogenetic relatedness at an integrated phage-based locus. This data was then used in several machine learning approaches and proved accurate in predicting taxonomic categories across disparate X. fastidiosa populations when trained with matrix transforms of host specific X. fastidiosa prophage regions. This final study described evolutionary significance of widely profiled prophage regions and introduced an algorithmic approach for future large-scale genetically themed X. fastidiosa based population studies. Overall, the work herein presents previously undescribed genetic aspects of oak associated X. fastidiosa populations and posits a novel method for future data synthesis.
Advisors/Committee Members: Kobayashi, Donald Y (chair), Oudemans, Peter (internal member), Gould, Ann Brooks (internal member), Zhang, Ning (internal member), Polashock, James (outside member).
Subjects/Keywords: Oak – Diseases and pests
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Behringer, G. (2015). The genetic characterization of Northeastern Quercus associated Xylella fastidiosa populations. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/48391/
Chicago Manual of Style (16th Edition):
Behringer, Gregory. “The genetic characterization of Northeastern Quercus associated Xylella fastidiosa populations.” 2015. Doctoral Dissertation, Rutgers University. Accessed March 06, 2021.
https://rucore.libraries.rutgers.edu/rutgers-lib/48391/.
MLA Handbook (7th Edition):
Behringer, Gregory. “The genetic characterization of Northeastern Quercus associated Xylella fastidiosa populations.” 2015. Web. 06 Mar 2021.
Vancouver:
Behringer G. The genetic characterization of Northeastern Quercus associated Xylella fastidiosa populations. [Internet] [Doctoral dissertation]. Rutgers University; 2015. [cited 2021 Mar 06].
Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/48391/.
Council of Science Editors:
Behringer G. The genetic characterization of Northeastern Quercus associated Xylella fastidiosa populations. [Doctoral Dissertation]. Rutgers University; 2015. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/48391/

University of Zambia
20.
Mwase, Fredrick Weston.
Incidence and severity of frogeye leaf spot of soyabeans[Glycine max(L)merr]in agroeconomical zone II of Zambia
.
Degree: 2011, University of Zambia
URL: http://hdl.handle.net/123456789/215
► Soybean (Glycine max (L.) Merr.) is an important crop in Zambia but many foliar diseases pose a serious threat to its successful production in the…
(more)
▼ Soybean (Glycine max (L.) Merr.) is an important crop in Zambia but many foliar
diseases pose a serious threat to its successful production in the country. During the
last three years frogeye leaf spot disease caused by Cercospora sojina Hara has
become the most prevalent disease in most parts of Zambia. A survey on farmers'
fields under SCSI, Kaleya, Magoye and Hernon-147 cultivars in agroecological zone
II of Zambia was carried out during the 1996/97 growing season to determine the
incidence and severity of frogeye leaf spot. Disease incidence and severity was
studied by monitoring disease progress at two weeks interval from the beginning of
January to April. A total of nine fields were surveyed in three provinces namely
Central, Lusaka and Southern. Soybean cultivars were evaluated for yield losses
resulting from frogeye leaf spot. Field plots of each cultivar were either sprayed twice
with benomyl or not sprayed at all.
Nine samples of frogeye leaf spot of soybean, collected from Central, Lusaka and
Southern provinces revealed variability among the isolates of Cercospora sojina (Cs-
01 to Cs-09) in morphology, physiology and virulence. Isolate Cs-08 had the greatest
conidial length and Cs-07 had the smallest conidial length. On the basis of conidial
width, isolates were grouped in four categories; and included Cs-04, Cs-05 and Cs-
06 (small < 5.0/^m) ; Cs-08 (broad 6.0-6.5^) ;Cs-01, Cs-02, Cs-03, Cs-07 and Cs-
09 (very broad > 7.0^ ) .
After the third day of growth on Carrot leaf decoction agar isolates Cs-04, Cs-07, Cs-
08 and Cs-09 produced the largest colony diameters while isolates Cs-02 and Cs-06
vi
had the slowest rate of growth. Growth rate of isolates on Potato dextrose agar and
Sabouraud dextrose agar did not show any significant differences (P <0.05)
throughout the period of culturing. Pathogenicity and virulence of the isolates tested
in green house grown plants at four weeks showed that isolates Cs-02 and Cs-08
were the most virulent and produced lesions with a mean diameter of 5.1 mm
fourteen days after inoculation. The least virulent isolates were Cs-04, Cs-05 and Cs-
05 which produced lesions of 2.0 mm diameter or less.
Results obtained from these studies showed that the incidence of frogeye leaf spot
was highest in Southern province (5.1), followed by Lusaka province (4.9) while
Central province had the lowest disease incidence (0.3) basing on the 1-9 disease
rating scale. Incidence and severity increased with time and varied depending on
weather parameters and susceptibility of cultivars to the disease. Yield reduction was
greatly influenced by the severity of the disease. Yield losses due to frogeye leaf
spot occurred through a reduction in seed size. It is believed that differences in
virulence of the isolates contributed to the observed variation in incidence and
severity of the disease at different locations
Subjects/Keywords: Leaves – Diseases and pests – Leaves – Diseases and pests
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mwase, F. W. (2011). Incidence and severity of frogeye leaf spot of soyabeans[Glycine max(L)merr]in agroeconomical zone II of Zambia
. (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/215
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mwase, Fredrick Weston. “Incidence and severity of frogeye leaf spot of soyabeans[Glycine max(L)merr]in agroeconomical zone II of Zambia
.” 2011. Thesis, University of Zambia. Accessed March 06, 2021.
http://hdl.handle.net/123456789/215.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mwase, Fredrick Weston. “Incidence and severity of frogeye leaf spot of soyabeans[Glycine max(L)merr]in agroeconomical zone II of Zambia
.” 2011. Web. 06 Mar 2021.
Vancouver:
Mwase FW. Incidence and severity of frogeye leaf spot of soyabeans[Glycine max(L)merr]in agroeconomical zone II of Zambia
. [Internet] [Thesis]. University of Zambia; 2011. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/123456789/215.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mwase FW. Incidence and severity of frogeye leaf spot of soyabeans[Glycine max(L)merr]in agroeconomical zone II of Zambia
. [Thesis]. University of Zambia; 2011. Available from: http://hdl.handle.net/123456789/215
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Nelson Mandela Metropolitan University
21.
Verleur, Peter Marcel.
Development of biological control strategies against sirex noctilio (Fabricius) on Sappi Forests (Ltd) Landholdings in the summer rainfall regions of South Africa.
Degree: Faculty of Science, 2009, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/1273
► The commercial forest industry in South Africa is predominantly dependent on large tracts of exotic monoculture plantations. While this simplifies management practice, there is always…
(more)
▼ The commercial forest industry in South Africa is predominantly dependent on large tracts of exotic monoculture plantations. While this simplifies management practice, there is always the inherent danger posed by introduced pests and diseases. Classical biological control is usually the most effective control method against introduced exotic pests. Climatic factors and seasonal differences may negatively affect the ability of the natural enemies to establish successfully at the new location. Successful establishment of the natural enemies usually results in control over the pest within four years. Sirex noctilio naturally occurs in the mediterranean countries of Europe and North Africa. It is the only member of the Siricid family capable of killing living pine trees. Sirex noctilio was accidentally introduced into New Zealand from Europe during the early 1900s. It has since been found in Australia, Brazil, Argentina South Africa and Chile. Initial biological control in New Zealand and Tasmania was through the release of Siricid specific parasitoid wasps from Europe and North America. The discovery of the accidental introduction of the entomophagous nematode Beddingia siricidicola and its subsequent artificial culturing for release provided the platform for the biological control methodology, which brought the Sirex woodwasp under control. The methods and natural enemies used in New Zealand and Australia were introduced by the South American countries and in the Western Cape of South Africa. Successful biological control was achieved in the Western Cape within two years after the initial introduction of the nematode B. siricidicola. The migration of S. noctilio into the summer rainfall regions of South Africa occurred in the absence of the associated natural enemies. This resulted in rapid population growth of the pest and substantial damage was caused to plantations of Pinus patula in the Eastern Cape and KwaZulu-Natal. Initial attempts at introducing B. siricidicola during 2004 were not very successful. This study contributes to the understanding and adaptation of the biological control methods to the summer rainfall climate. The key finding was that in the summer rainfall climate, only the bottom third of nematode inoculated S. noctilio infested trees produced parasitized adults during the emergence period. A comparative study was done on log samples from S. noctilio infested trees collected in the Western Cape and KwaZulu-Natal. iv An adapted nematode inoculation technique for pulpwood plantations in the summer rainfall regions was developed and implemented in mass inoculations with B. siricidicola during 2007 and 2008. Locally available herbicides were tested for suitability of use in the establishment of trap trees, which would attract ovipositing S. noctilio females in situations where low numbers of the woodwasp occur. Determination of the levels of natural B. siricidicola parasitism in S. noctilio adults during the 2008 emergence period indicate successful establishment of the nematode in KwaZulu-Natal.…
Subjects/Keywords: Pests – Biological control – South Africa; Nonindigenous pests – Control
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Verleur, P. M. (2009). Development of biological control strategies against sirex noctilio (Fabricius) on Sappi Forests (Ltd) Landholdings in the summer rainfall regions of South Africa. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/1273
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Verleur, Peter Marcel. “Development of biological control strategies against sirex noctilio (Fabricius) on Sappi Forests (Ltd) Landholdings in the summer rainfall regions of South Africa.” 2009. Thesis, Nelson Mandela Metropolitan University. Accessed March 06, 2021.
http://hdl.handle.net/10948/1273.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Verleur, Peter Marcel. “Development of biological control strategies against sirex noctilio (Fabricius) on Sappi Forests (Ltd) Landholdings in the summer rainfall regions of South Africa.” 2009. Web. 06 Mar 2021.
Vancouver:
Verleur PM. Development of biological control strategies against sirex noctilio (Fabricius) on Sappi Forests (Ltd) Landholdings in the summer rainfall regions of South Africa. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2009. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10948/1273.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Verleur PM. Development of biological control strategies against sirex noctilio (Fabricius) on Sappi Forests (Ltd) Landholdings in the summer rainfall regions of South Africa. [Thesis]. Nelson Mandela Metropolitan University; 2009. Available from: http://hdl.handle.net/10948/1273
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Nelson Mandela Metropolitan University
22.
Van der Walt, Rachel.
Identifying volatile emissions associated with False Codling Moth infested citrus fruit.
Degree: Faculty of Science, 2012, Nelson Mandela Metropolitan University
URL: http://hdl.handle.net/10948/d1020056
► False codling moth is a known pest of economic importance to many cultivated crops in South Africa and Africa south of the Sahara, and is…
(more)
▼ False codling moth is a known pest of economic importance to many cultivated crops in South Africa and Africa south of the Sahara, and is particularly severe on citrus. If the fruit is infested just before harvest the chances of detecting signs of infestation are very low. As a result, the risk of packaging infested fruit and exporting them as healthy fruit is high. It is therefore a priority to develop a post-harvest technique for detection of False codling moth in citrus fruit at different levels of infestation in order to reduce phytosanitary risk. Compounds released and detected were indicative of infestation and were not insect produced but naturally produced fruit volatiles emitted at higher levels as a result of the insect within the fruit. Five major volatile compounds of interest were released by the infested oranges. These major volatile compounds include D-limonene, 3,7-dimethyl-1,3,6-octatriene, (E)-4,8-dimethyl-1,3,7-nonatriene, caryophyllene and naphthalene. Limonene was one of the most abundant volatile compounds released by the infested citrus fruit. Naphthalene, which is possibly produced due to larval feeding and development within the fruit maintained higher concentrations than controls throughout the infestation within the fruit. Naphthalene would be a good indicator of False codling moth infestation, however, not primarily for early infestation detection. A significantly higher concentration of D-limonene, 3,7-dimethyl-1,3,6-octatriene, (E)-4,8-dimethyl-1,3,7-nonatriene and naphthalene was detected using the SEP over the SPME technique. The application of an SPME procedure and the utilization of this method for detection of volatiles present in the headspace of intact infested fruit are evaluated and the possible volatile compounds diagnostic of Thaumatotibia leucotreta infestation of orange fruit and differences in volatile compound response in different orange varieties is discussed.
Subjects/Keywords: Citrus – Diseases and pests; Insect pests; Cryptophlebia leucotreta
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
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APA (6th Edition):
Van der Walt, R. (2012). Identifying volatile emissions associated with False Codling Moth infested citrus fruit. (Thesis). Nelson Mandela Metropolitan University. Retrieved from http://hdl.handle.net/10948/d1020056
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Van der Walt, Rachel. “Identifying volatile emissions associated with False Codling Moth infested citrus fruit.” 2012. Thesis, Nelson Mandela Metropolitan University. Accessed March 06, 2021.
http://hdl.handle.net/10948/d1020056.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Van der Walt, Rachel. “Identifying volatile emissions associated with False Codling Moth infested citrus fruit.” 2012. Web. 06 Mar 2021.
Vancouver:
Van der Walt R. Identifying volatile emissions associated with False Codling Moth infested citrus fruit. [Internet] [Thesis]. Nelson Mandela Metropolitan University; 2012. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10948/d1020056.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Van der Walt R. Identifying volatile emissions associated with False Codling Moth infested citrus fruit. [Thesis]. Nelson Mandela Metropolitan University; 2012. Available from: http://hdl.handle.net/10948/d1020056
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
23.
Rwiza, Ignath Hildeus.
Combining ability for yeild of imidazolinone resistant maize inbred lines under artificial and natural striga infestation.
Degree: 2011, University of Zimbabwe
URL: http://dspace.unza.zm/handle/123456789/232
► Striga hermonthica (Del.) Beth popularly known as witchweed infests cereal crops particularly maize (Zea mays L.) leading to severe reductions in yields, thereby compounding the…
(more)
▼ Striga hermonthica (Del.) Beth popularly known as witchweed infests cereal crops
particularly maize (Zea mays L.) leading to severe reductions in yields, thereby
compounding the food insecurity of thousands of households in sub-Saharan Africa region. In Tanzania, maize is grown on about 2 million hectares but the yield obtained is very low. It is estimated at 1.3 tons ha-1. Various control measures against striga that have been used so far are not effective because the damage occurs before the weed emerges, therefore, an appropriate control strategy has to be effective in the soil before emergence. One promising strategy in suppressing striga parasitism has been the use of imidazolinone resistant maize varieties where the seed is coated with imazapyr herbicide. A study was carried out to investigate the inheritance of this trait
in maize populations. Ninety three testcrosses based on three testers; CML373-
IR/CML393-IR (tester A), CML202-IR/CML395-IR (tester B) and IR OPV(Synthesis
2000-IR) (tester C) were evaluated under natural and artificial striga infestation
conditions in the Lake zone of Tanzania and Kisumu-Kenya in the 2006 season using
alpha (0,1) lattice design. Grain yield was used as a proxy to maize resistance to
imazapyr herbicide such that resistant materials were suitable candidates in striga
infested areas with the use of the herbicide. The results from the study showed
differences in both General Combining Ability (GCA) and Specific Combining
Ability (SCA) effects for grain yield. GCA effects ranged from -0.57 to 0.78. SCA
effects were different within each tester. The SCA effects with tester A, ranged from -
0.67 to 0.58, with tester B from -0.70 to 0.32 and with tester C from -0.62 to 0.80. The contribution of GCA and SCA to entry sums of squares for grain yield was relatively higher for GCA than for SCA at 38 and 32 percent, respectively. This suggested that the additive gene effects were the more important source of variation on herbicide resistance.
Subjects/Keywords: Striga; Corn – Diseases and pests- – Corn – Diseases and pests.
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
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APA (6th Edition):
Rwiza, I. H. (2011). Combining ability for yeild of imidazolinone resistant maize inbred lines under artificial and natural striga infestation. (Thesis). University of Zimbabwe. Retrieved from http://dspace.unza.zm/handle/123456789/232
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Rwiza, Ignath Hildeus. “Combining ability for yeild of imidazolinone resistant maize inbred lines under artificial and natural striga infestation.” 2011. Thesis, University of Zimbabwe. Accessed March 06, 2021.
http://dspace.unza.zm/handle/123456789/232.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Rwiza, Ignath Hildeus. “Combining ability for yeild of imidazolinone resistant maize inbred lines under artificial and natural striga infestation.” 2011. Web. 06 Mar 2021.
Vancouver:
Rwiza IH. Combining ability for yeild of imidazolinone resistant maize inbred lines under artificial and natural striga infestation. [Internet] [Thesis]. University of Zimbabwe; 2011. [cited 2021 Mar 06].
Available from: http://dspace.unza.zm/handle/123456789/232.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Rwiza IH. Combining ability for yeild of imidazolinone resistant maize inbred lines under artificial and natural striga infestation. [Thesis]. University of Zimbabwe; 2011. Available from: http://dspace.unza.zm/handle/123456789/232
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Washington
24.
Pierce, William R.
Dwarf Mistletoe And Its Effect Upon The Growth Of Larch And Douglas Fir In Western Montana.
Degree: PhD, 2013, University of Washington
URL: http://hdl.handle.net/1773/23902
► Dwarf mistletoes are intolerant, dioecius seed plants belonging to the Loranthaceae family. Five species, Arceuthobium pussillum, A. americanum, A, douglasii, A. vaginatum, and A. campylopodum…
(more)
▼ Dwarf mistletoes are intolerant, dioecius seed plants belonging to the Loranthaceae family. Five species, Arceuthobium pussillum, A. americanum, A, douglasii, A. vaginatum, and A. campylopodum have been recognized in North America. All of them are restricted to coniferous hosts.
The aerial portions of the plant are small, not exceeding 2 1/2 inches in length, and constrain very little chlorophyll. They persist for only a short time, varying with the species, and their primary purpose seems to be reproduction. Pollination is by insects and the small dense seeds are dispersed by mechanical propulsion.
The greater portion of this pest lies within the host tree, forming the entophytic system. Infection usually originated on the younger branches of the host and persists as long as that part of the tree remains alive.
Stands infected with this parasite do not begin to produce the volume or quality of products of which they are capable. This is the result of a reduction in the growth rate, of poorer form, distortion of grain, large knots, and higher mortality in the infected trees. In addition there is reduction in the size of the viable seed crop and infected seedlings are usually unable to reach merchantable size.
Merchantable size larch and Douglas fir with less than 33 per cent of their crown infected with mistletoe will have about 14 per cent slower basal area growth than a healthy tree. Trees of the same species with over 60 per cent of their crown infected with the parasite can have their basal area growth reduced as much as 68 per cent.
Because of the magnitude of the growth losses incurred from this parasite it must be controlled before the production of timber in the future can become an economic possibility for those stands now infected.
Subjects/Keywords: Mistletoes. Larches – Diseases and pests. Douglas fir – Diseases and pests.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pierce, W. R. (2013). Dwarf Mistletoe And Its Effect Upon The Growth Of Larch And Douglas Fir In Western Montana. (Doctoral Dissertation). University of Washington. Retrieved from http://hdl.handle.net/1773/23902
Chicago Manual of Style (16th Edition):
Pierce, William R. “Dwarf Mistletoe And Its Effect Upon The Growth Of Larch And Douglas Fir In Western Montana.” 2013. Doctoral Dissertation, University of Washington. Accessed March 06, 2021.
http://hdl.handle.net/1773/23902.
MLA Handbook (7th Edition):
Pierce, William R. “Dwarf Mistletoe And Its Effect Upon The Growth Of Larch And Douglas Fir In Western Montana.” 2013. Web. 06 Mar 2021.
Vancouver:
Pierce WR. Dwarf Mistletoe And Its Effect Upon The Growth Of Larch And Douglas Fir In Western Montana. [Internet] [Doctoral dissertation]. University of Washington; 2013. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/1773/23902.
Council of Science Editors:
Pierce WR. Dwarf Mistletoe And Its Effect Upon The Growth Of Larch And Douglas Fir In Western Montana. [Doctoral Dissertation]. University of Washington; 2013. Available from: http://hdl.handle.net/1773/23902

Montana State University
25.
Schleier, Jerome Joseph III.
Development of an environmental fate model for risk assessment of ultra-low-volume insecticides.
Degree: PhD, College of Agriculture, 2012, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/2198
► One of the most effective ways of managing adult mosquitoes that vector human and animal pathogens is the use of ultra-low-volume (ULV) insecticides. The U.S.…
(more)
▼ One of the most effective ways of managing adult mosquitoes that vector human and animal pathogens is the use of ultra-low-volume (ULV) insecticides. The U.S. Environmental Protection Agency uses models that are not validated for ULV insecticide applications and exposure assumptions to perform their human and ecological risk assessments. Currently, there is no validated model that can accurately predict deposition of insecticides applied using ULV technology for adult mosquito management. In addition, little is known about the deposition and drift of small droplets like those used under conditions encountered during ULV applications. The objectives of my dissertation were to perform field studies to measure environmental concentrations of insecticides and to develop a validated model to predict the deposition of ULV insecticides, and use the data generated from the field study to perform refined human and aquatic ecological risk assessments. To model the field data collected during the summers of 2009-2011 a regression model selected by the Bayesian Information Criterion and k-fold cross validation was used to validate the selected model. k-fold cross validation demonstrated that the mean square error and mean square prediction error were similar indicating good predictive ability. The human-health risk assessment demonstrated that previous risk assessments used conservative exposure scenarios that overestimated risks, thus being conservative in protecting human health. Our results demonstrated a 10-fold reduction in the RQ estimates when comparing risk assessments using estimated environmental concentrations and actual environmental concentrations from the environmental fate model. Because I used a large data set to model concentrations deposited on surfaces, this variance in exposure is due to the inherent variability in deposition concentrations after ULV applications and, therefore, would not warrant further refinement to improve risk assessments. The aquatic risk assessment using actual environmental concentrations showed that the 95th percentile estimated concentration would result in less than 0.0001% of the potentially affected fraction of species reaching their respective LC50. Our results are supported by the weight of evidence that pyrethroids applied by ground-based ULV applications will not result in deleterious effects on aquatic organisms.
Advisors/Committee Members: Chairperson, Graduate Committee: Robert K. D. Peterson. (advisor).
Subjects/Keywords: Insecticides.; Mosquitoes.; Ecology.; Risk assessment.; Insect pests.; Pests Control.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Schleier, J. J. I. (2012). Development of an environmental fate model for risk assessment of ultra-low-volume insecticides. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/2198
Chicago Manual of Style (16th Edition):
Schleier, Jerome Joseph III. “Development of an environmental fate model for risk assessment of ultra-low-volume insecticides.” 2012. Doctoral Dissertation, Montana State University. Accessed March 06, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/2198.
MLA Handbook (7th Edition):
Schleier, Jerome Joseph III. “Development of an environmental fate model for risk assessment of ultra-low-volume insecticides.” 2012. Web. 06 Mar 2021.
Vancouver:
Schleier JJI. Development of an environmental fate model for risk assessment of ultra-low-volume insecticides. [Internet] [Doctoral dissertation]. Montana State University; 2012. [cited 2021 Mar 06].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/2198.
Council of Science Editors:
Schleier JJI. Development of an environmental fate model for risk assessment of ultra-low-volume insecticides. [Doctoral Dissertation]. Montana State University; 2012. Available from: https://scholarworks.montana.edu/xmlui/handle/1/2198

Montana State University
26.
Morales-Rodriguez, Anuar.
The composition of wireworm species in Montana wheat and barley fields and its effect on developing IPM programs.
Degree: PhD, College of Agriculture, 2014, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/9416
► Wireworms, the larvae of click beetles, are the most important soil-insect pest of small grain fields in Montana. Worldwide, there are about 9,300 species of…
(more)
▼ Wireworms, the larvae of click beetles, are the most important soil-insect pest of small grain fields in Montana. Worldwide, there are about 9,300 species of elaterids in 400 different genera, and in North America 885 species in 60 genera have been identified. In Montana, 166 species were identified, among them, 21 species have been identified as possible
pests in small grain fields and some are serious
pests of a wide variety of crops. My research focused on three main objectives related to wireworm IPM: first, the identification of the species causing damage in the field and their geographic and seasonal distribution in Montana; second, establishing the potential of different baited traps to monitor pest wireworm populations; and third, evaluating chemical and cultural management alternatives. To complete the first objective a statewide wireworm survey was conducted for three years as well as an intense sampling of four cereal fields season for three consecutive years. To complete the second objective, the effectiveness of four baited traps were assessed: traditional pitfall compared to pot, stocking and canister type traps, in four cereal fields for three years. To complete the last objective, laboratory, greenhouse and field studies were conducted to evaluate new insecticides, crop injury, tillage practices and seeding density. 5,097 wireworms were collected from the four sites during 2010 - 2012 including four common species, Aeolus mellillus, Hypnoidus bicolor, Limonius californicus and L. infuscatus, and three minor species, Agriotes spp., Dalopius spp. and Selatosomus aeripennis. Peak wireworm activity at the soil surface was found to coincide with cereal crop germination and establishment. While all trap types can be used to detect wireworm activity and estimate population levels, pitfall and stocking were more efficient than pot and canister traps. Thiamethoxam does not kill wireworms but its ability to suppress wireworm populations in the field can be improved by the addition of fipronil. Increasing seeding density is one of the most common cultural recommendations for managing wireworms, but my studies did not support its benefit to higher crop yields. Significantly, species-specific crop injury and seasonal movement in the soil support the need for species-specific IPM research.
Advisors/Committee Members: Chairperson, Graduate Committee: Kevin Wanner (advisor), Kevin W. Wanner was a co-author of the article, 'An evaluation of four different bait traps for sampling wireworms (Coleoptera: Elateridae) infesting cereal crops in Montana' submitted to the journal 'Journal of economic entomology' which is contained within this thesis. (other), Ruth P. O'Neill and Kevin W. Wanner were co-authors of the article, 'A survey of wireworm (Coleoptera: Elateridae) species infesting cereal crops in Montana' in the journal 'Pan-pacific entomologist' which is contained within this thesis. (other), Kevin W. Wanner was a co-author of the article, 'Determining the potential for cereal crop injury by wireworm species commonly found infesting cropland in Montana' submitted to the journal 'Canadian entomologist' which is contained within this thesis. (other), Kevin W. Wanner was a co-author of the article, 'Efficacy of thiamethoxam and fipronil, applied alone and in combination, to control Limonius californicus and Hypnoidus bicolor (Coleoptera: Elateridae)' in the journal 'Pest management science' which is contained within this thesis. (other), David Wichman and Kevin W. Wanner were co-authors of the article, 'Effects of cultural practices on wireworm populations and damage in cereal fields' submitted to the journal 'Crop sciences' which is contained within this thesis. (other).
Subjects/Keywords: Wireworms.; Pests Integrated control; Wheat.; Barley.; Agricultural pests.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Morales-Rodriguez, A. (2014). The composition of wireworm species in Montana wheat and barley fields and its effect on developing IPM programs. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/9416
Chicago Manual of Style (16th Edition):
Morales-Rodriguez, Anuar. “The composition of wireworm species in Montana wheat and barley fields and its effect on developing IPM programs.” 2014. Doctoral Dissertation, Montana State University. Accessed March 06, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/9416.
MLA Handbook (7th Edition):
Morales-Rodriguez, Anuar. “The composition of wireworm species in Montana wheat and barley fields and its effect on developing IPM programs.” 2014. Web. 06 Mar 2021.
Vancouver:
Morales-Rodriguez A. The composition of wireworm species in Montana wheat and barley fields and its effect on developing IPM programs. [Internet] [Doctoral dissertation]. Montana State University; 2014. [cited 2021 Mar 06].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/9416.
Council of Science Editors:
Morales-Rodriguez A. The composition of wireworm species in Montana wheat and barley fields and its effect on developing IPM programs. [Doctoral Dissertation]. Montana State University; 2014. Available from: https://scholarworks.montana.edu/xmlui/handle/1/9416

Montana State University
27.
Tharp, Cecil Irwin.
Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) & natural enemy complex: Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) and natural enemy complex.
Degree: PhD, College of Agriculture, 2015, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/8865
► Studies were conducted in Montana to evaluate the impacts of the insect growth regulators novaluron, diflubenzuron, azadirachtin and the particle barrier film, kaolin, on the…
(more)
▼ Studies were conducted in Montana to evaluate the impacts of the insect growth regulators novaluron, diflubenzuron, azadirachtin and the particle barrier film, kaolin, on the primary pest, alfalfa weevil (AW, Hypera Postica [Gyllenhal)], natural enemies of alfalfa weevil and the secondary pest, pea aphid, Acyrthosiphon pisum (Harris). Kaolin, diflubenzuron and azadirachtin treatments caused low (<53%) AW mortality and did not prevent AW feeding damage across 5 field sites. Novaluron caused the highest mortality (74 ± 3% at one field site) while significantly reducing feeding damage across two of five field sites (P < 0.05) and two greenhouse trials. Plants treated with novaluron weighed significantly more than untreated plants at harvest in either greenhouse study with a final harvest weight of 2.7 ± 0.2 and 3.4 ± 0.3g / pot in the novaluron treated pots compared to 2.2 ± 0.1 and 2.4 ± 0.3 g / pot in the untreated; however harvest yields were not increased in field trials. All experimental treatments provided some pre-harvest benefits to the predator-alfalfa weevil and predator-pea aphid complex at various field sites; however novaluron treatments provided significantly higher predator-alfalfa weevil ratios consistently across four of five field sites when compared to the synthetic pyrethroid, lambda cyhalothrin (P < 0.05). At these four field sites, novaluron treated plots harbored an average predator-alfalfa weevil ratio of 0.15 ± 0.07 compared to 0.02 ± 0.02 in lambda cyahlothrin treated plots in the first harvest cycle. Parasitism rates were significantly higher when experimental treatments were used compared to the lambda cyhalothrin treated plots across five field sites (P < 0.05). The added benefit of conserving predators and parasitoids in combination with direct pesticide efficacy never reduced densities of AW or pea aphid to that of the synthetic pyrethroid treatment in the first or second harvest cycle. While novaluron had little benfit on reducing AW or pea aphid poulations to that of the synthetic pyrethroid treatment, it offers the best potential for developing a soft-chemical/biological system for protecting alfalfa from this key arthropod pest. Future studies taking advantage of novalurons mode of action as a feeding deterrent should be explored.
Advisors/Committee Members: Chairperson, Graduate Committee: Mary Burrows (advisor).
Subjects/Keywords: Alfalfa weevil.; Pea aphid.; Growth regulators.; Insect pests.; Pests Biological control.
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tharp, C. I. (2015). Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) & natural enemy complex: Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) and natural enemy complex. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/8865
Chicago Manual of Style (16th Edition):
Tharp, Cecil Irwin. “Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) & natural enemy complex: Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) and natural enemy complex.” 2015. Doctoral Dissertation, Montana State University. Accessed March 06, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/8865.
MLA Handbook (7th Edition):
Tharp, Cecil Irwin. “Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) & natural enemy complex: Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) and natural enemy complex.” 2015. Web. 06 Mar 2021.
Vancouver:
Tharp CI. Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) & natural enemy complex: Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) and natural enemy complex. [Internet] [Doctoral dissertation]. Montana State University; 2015. [cited 2021 Mar 06].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/8865.
Council of Science Editors:
Tharp CI. Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) & natural enemy complex: Impacts of three insect growth regulators and the particle barrier film, Kaolin, on alfalfa weevil, Hypera postica (Gyllenhal), secondary pest, pea aphid, Acyrthosiphon pisum (Harris) and natural enemy complex. [Doctoral Dissertation]. Montana State University; 2015. Available from: https://scholarworks.montana.edu/xmlui/handle/1/8865

Montana State University
28.
Murphy, Carmen Yvette.
Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer), vector to wheat streak mosaic virus.
Degree: MS, College of Agriculture, 2016, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/12374
► Wheat streak mosaic virus (WSMV) causes yield loss to wheat (Triticum aestivum) in all areas of the world where the crop is grown. No chemical…
(more)
▼ Wheat streak mosaic virus (WSMV) causes yield loss to wheat (Triticum aestivum) in all areas of the world where the crop is grown. No chemical controls for the WSMV vector, the wheat curl mite (WCM, Aceria tosichella Keifer), are approved. Control relies primarily on avoiding a 'green-bridge' of living plant material that can host the disease between seasons. This study aimed to 1) identify chemical treatments for WCM control under conventional and organic systems and clarify misconceptions that treatments, such as sulfur, control WCM and 2) analyze the capacity of 20 grassy species to serve as reservoirs of WSMV and WCM. The effects of insecticides with varying modes of action (carbamate, organophosphate, pyrethroid, neonicotinoid, biological control, oil, ovicide, mite growth inhibitor, and soap) on WCM population growth were tested in the greenhouse. Treatment with the active ingredients aldicarb and chlorpyrifos decreased WCM populations compared to untreated controls (p<0.001 and p<0.001). Field trials were conducted in spring wheat in 2013 and winter wheat in 2013-2014. Similar effects on WSMV spread were not observed in field trials. These trials included ten products consisting of five modes of action: organophosphates, pyrethroid, oil, soap and mite growth inhibitor. Chlorpyrifos was included in the field trials, but no efficacy was seen in 2013 compared to controls under good infection and incidence and infection was low in 2014, therefore we were unable to distinguish any treatment effect. To assess the capacity of 20 grassy species to serve as reservoirs of WSMV and WCM, plants with varying lifespan and origin were grown in the greenhouse and infested with viruliferous WCM. Lifespan had the greatest impact on ability of plants to host WCM (p=0.011) and WSMV (p<0.001). Annual plant species are more likely to host WCM than perennial grasses, with all species hosting WCM. Native and introduced species tested did not differ in ability to host WCM (p=0.735) and WSMV (p=0.096). This study provides evidence of potential for use of active ingredient chlorpyrifos in WCM control, and showed that lifespan is an important determinant of WSMV disease reservoir potential of grassy species.
Advisors/Committee Members: Chairperson, Graduate Committee: Mary Burrows (advisor).
Subjects/Keywords: Mites.; Wheat.; Mosaic viruses.; Agricultural pests.; Pests Control.
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APA (6th Edition):
Murphy, C. Y. (2016). Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer), vector to wheat streak mosaic virus. (Masters Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/12374
Chicago Manual of Style (16th Edition):
Murphy, Carmen Yvette. “Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer), vector to wheat streak mosaic virus.” 2016. Masters Thesis, Montana State University. Accessed March 06, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/12374.
MLA Handbook (7th Edition):
Murphy, Carmen Yvette. “Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer), vector to wheat streak mosaic virus.” 2016. Web. 06 Mar 2021.
Vancouver:
Murphy CY. Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer), vector to wheat streak mosaic virus. [Internet] [Masters thesis]. Montana State University; 2016. [cited 2021 Mar 06].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/12374.
Council of Science Editors:
Murphy CY. Chemical control and disease reservoir studies of the wheat curl mite (Aceria tosichella Keifer), vector to wheat streak mosaic virus. [Masters Thesis]. Montana State University; 2016. Available from: https://scholarworks.montana.edu/xmlui/handle/1/12374

Montana State University
29.
Varella, Andrea Correa.
Genetic basis of wheat resistance to the wheat stem sawfly.
Degree: PhD, College of Agriculture, 2016, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/9588
► The wheat stem sawfly, Cephus cinctus Norton (WSS), has been a serious pest of wheat in the Northern Great Plains of North America for decades.…
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▼ The wheat stem sawfly, Cephus cinctus Norton (WSS), has been a serious pest of wheat in the Northern Great Plains of North America for decades. Host plant resistance has been most consistently effective and is the foundation for integrated pest management of the WSS; therefore, the main objective of this research was to enhance the repertoire of genetic resistance to WSS available for exploitation by wheat breeders through marker-assisted selection (MAS). We used two strategies to achieve our goal. First, we better characterized resistance provided by previously identified quantitative trait loci (QTL). For that, we developed populations of near-isogenic lines (NILs) polymorphic for resistance QTLs on chromosomes 2D (Qwss.msub-2D), 3B (Qss-msub-3BL) and 4A (Qwss.msub-4A.1). Near-isogenic lines were tested greenhouse cage trials and in the field at both WSS-infested and uninfested locations. The Qwss.msub-4A.1 was shown to affect host plant attractiveness to foraging females, but did not change oviposition preference after females landed on the wheat stem. The Qwss.msub-2D and Qss-msub-3BL where shown to be associated with decreased preference for oviposition. The Qss-msub-3BL was also shown to be associated with temporal patterns of stem solidness expression, with the allele derived from the spring wheat cultivar Conan providing decreased infestation, high neonatal mortality, high levels of early stem solidness, and a rapid rate of pith retraction during stem maturation. Together, these studies characterized the effect of each one of these QTLs on WSS resistance. This information will help wheat breeders and entomologists to better integrate management strategies to reduce damage caused by the WSS. Our second strategy, involved the identification of new marker-trait associations for WSS resistance. For that, we used a panel of 244 elite spring wheat lines from North America. By conducting an association mapping study we were able to identify several QTLs for WSS resistance, including QTLs for early and late stem solidness, heading date, stem cutting, and larval mortality. This study showed that improvements in WSS management may be obtained using alleles that already exist in elite germplasm. Collectively, our research provided wheat breeders with a better tool kit for improving resistance to the WSS.
Advisors/Committee Members: Chairperson, Graduate Committee: Luther E. Talbert (advisor), Luther E. Talbert, Robert K. D. Peterson, Jamie D. Sherman, Nancy K. Blake, Megan L. Hofland, John M. Martin and David K. Weaver were co-authors of the article, 'Host plant quantitative trait loci affect specific behavioral sequences in oviposition by a stem-mining insect' submitted to the journal 'BMC plant biology' which is contained within this thesis. [SUBMITTED] (other), Megan L. Hofland, Micaela Buteler, Luther E. Talbert, Jamie D. Sherman, Nancy K. Blake, Hwa-Young Heo, John M. Martin and David K. Weaver were co-authors of the article, 'Temporal patterns of pith expression and retraction in wheat stems and its effect on resistance to the wheat stem sawfly' submitted to the journal ' ' which is contained within this thesis. [SUBMITTED] [NO MAG] (other), David K. Weaver, Jamie D. Sherman, Nancy K. Blake, Hwa-Young Heo, Jay Kalous, Shiaoman Chao, Megan L. Hofland, John M. Martin, Kenneth D. Kephart and Luther E. Talbert were co-authors of the article, 'Association analysis of stem solidness and wheat stem sawfly resistance in a panel of North American spring wheat germplasm' submitted to the journal 'Crop sciences' which is contained within this thesis. [PUBLISHED] (other).
Subjects/Keywords: Cephus cinctus.; Plants Insect resistance.; Insect pests.; Pests Biological control.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Varella, A. C. (2016). Genetic basis of wheat resistance to the wheat stem sawfly. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/9588
Chicago Manual of Style (16th Edition):
Varella, Andrea Correa. “Genetic basis of wheat resistance to the wheat stem sawfly.” 2016. Doctoral Dissertation, Montana State University. Accessed March 06, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/9588.
MLA Handbook (7th Edition):
Varella, Andrea Correa. “Genetic basis of wheat resistance to the wheat stem sawfly.” 2016. Web. 06 Mar 2021.
Vancouver:
Varella AC. Genetic basis of wheat resistance to the wheat stem sawfly. [Internet] [Doctoral dissertation]. Montana State University; 2016. [cited 2021 Mar 06].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/9588.
Council of Science Editors:
Varella AC. Genetic basis of wheat resistance to the wheat stem sawfly. [Doctoral Dissertation]. Montana State University; 2016. Available from: https://scholarworks.montana.edu/xmlui/handle/1/9588

Montana State University
30.
Kumar, Vipan.
Confirmation and management of glyphosate-resistant Kochia (Kochia scoparia) in Montana.
Degree: PhD, College of Agriculture, 2015, Montana State University
URL: https://scholarworks.montana.edu/xmlui/handle/1/9056
► Kochia (Kochia scoparia L.) is one of the most problematic weeds in cropland and non-cropland areas of the US Great Plains. This research confirms the…
(more)
▼ Kochia (Kochia scoparia L.) is one of the most problematic weeds in cropland and non-cropland areas of the US Great Plains. This research confirms the first report on glyphosate-resistant (GR) K. scoparia in Montana, and elucidates the mechanisms of glyphosate and ALS-inhibitor resistance, growth and reproductive fitness of GR K. scoparia, and its management. This research also reports the response of K. scoparia demographics to glyphosate timings in GR sugar beet and evaluate herbicide options for managing volunteer GR canola in GR sugar beet. Based on whole-plant dose-response experiments, four GR K. scoparia accessions (JOP01, GIL01, CHES01, CHES02) had 4.6 to 11-fold levels of resistance to glyphosate compared to a glyphosate-susceptible (GS) accession. Confirmed GR K. scoparia accessions (GIL01, JOP01, and CHES01) also exhibited 9.3- to 30-fold resistance to sulfonylurea herbicide (ALS inhibitors). Results from PCR, quantitative PCR, and immunoblotting assays indicated that EPSPS gene amplification (~ 4 to 10 copies) and single point mutation at Pro197 in ALS gene conferred resistance to glyphosate and ALS-inhibitors, respectively. Inbred lines of GR K. scoparia (CHES01 and JOP01) with 2- to 14-fold amplification of the EPSPS gene did not confer any growth- or fecundity-related fitness cost. From a management standpoint, acetochlor + atrazine, S-metolachlor + atrazine + mesotrione, and sulfentrazone applied PRE and paraquat + atrazine, paraquat + linuron, and paraquat + metribuzin applied POST or in postharvest wheat stubble provided effective (> or = 91%) control of K. scoparia. In GR sugar beet, sequential applications of glyphosate (6-leaf fb 10-leaf stage of sugar beet) reduced survival, biomass and seed production of K. scoparia plants in cohort 1 and 2; however, an additional application of glyphosate at the canopy closure stage of sugar beet was needed to prevent seed production from the late-emerging K. scoparia (cohort 3). Ethofumesate (4,200 g ha -1) PRE followed by sequential POST triflusulfuron methyl (17.5 g ha -1) was the most effective treatment for managing volunteer GR canola in GR sugar beet. Overall, this research demonstrates the adaptability of K. scoparia evolving resistance to glyphosate and ALS inhibitors, and suggest the need for adoption of integrated weed management practices.
Advisors/Committee Members: Chairperson, Graduate Committee: Prashant Jha (advisor), Prashant Jha and Nicholas Reichard were co-authors of the article, 'Occurrence and characterization of Kochia (Kochia scoparia) accessions with resistance to glyphosate in Montana' in the journal 'Weed technology journal' which is contained within this thesis. (other), Prashant Jha, Darci Giacomini, Eric Westra and Philip Westra were co-authors of the article, 'Molecular basis of evolved resistance to glyphosate and acetolactate synthase-inhibitor herbicides in Kochia (Kochia scoparia) accessions from Montana' submitted to the journal 'Weed science journal' which is contained within this thesis. (other), Prashant Jha was a co-author of the article, 'Impact of EPSPS gene amplification and intraspecific competition on fitness of glyphosate-resistan Kochia scoparia inbreds' submitted to the journal 'PLoS one journal' which is contained within this thesis. (other), Prashant Jha was a co-author of the article, 'Effective preemergence and postemergence herbicide programs for Kochia control' in the journal 'Weed technology journal' which is contained within this thesis. (other), Prashant Jha was a co-author of the article, 'Influence of herbicides applied postharvest in wheat stubble on control, fecundity, and progeny fitness of Kochia scoparia in the US Great Plains' in the journal 'Crop protection journal' which is contained within this thesis. (other), Prashant Jha was a co-author of the article, 'Influence of glyphosate timing on Kochia (Kochia scoparia) demographics in glyphosate-resistant sugar beet' submitted to the journal 'Weed technology journal' which is contained within this thesis. (other), Prashant Jha was a co-author of the article, 'Control of volunteer glyphosate-resistant canola in glyphosate-resistant sugar beet' in the journal 'Weed technology journal' which is contained within this thesis. (other), Kumar, Vipan|0000-0002-8301-5878 (orcid).
Subjects/Keywords: Kochia.; Agricultural pests.; Pests Control.; Herbicide resistance.; Flavoproteins.; Lyases.
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kumar, V. (2015). Confirmation and management of glyphosate-resistant Kochia (Kochia scoparia) in Montana. (Doctoral Dissertation). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/9056
Chicago Manual of Style (16th Edition):
Kumar, Vipan. “Confirmation and management of glyphosate-resistant Kochia (Kochia scoparia) in Montana.” 2015. Doctoral Dissertation, Montana State University. Accessed March 06, 2021.
https://scholarworks.montana.edu/xmlui/handle/1/9056.
MLA Handbook (7th Edition):
Kumar, Vipan. “Confirmation and management of glyphosate-resistant Kochia (Kochia scoparia) in Montana.” 2015. Web. 06 Mar 2021.
Vancouver:
Kumar V. Confirmation and management of glyphosate-resistant Kochia (Kochia scoparia) in Montana. [Internet] [Doctoral dissertation]. Montana State University; 2015. [cited 2021 Mar 06].
Available from: https://scholarworks.montana.edu/xmlui/handle/1/9056.
Council of Science Editors:
Kumar V. Confirmation and management of glyphosate-resistant Kochia (Kochia scoparia) in Montana. [Doctoral Dissertation]. Montana State University; 2015. Available from: https://scholarworks.montana.edu/xmlui/handle/1/9056
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