subject:(natural enemies)

University of Melbourne

1. Ghosh, Purabi R. Effect of vegetation diversity on natural enemy abundance in two agricultural contexts.

Degree: 2012, University of Melbourne

► Vegetation diversity has long been known to enhance natural pest control at both the local and landscape level. However little is known about the characteristics… (more)

▼ Vegetation diversity has long been known to enhance natural pest control at both the local and landscape level. However little is known about the characteristics of this vegetation that promote/shelter more natural enemies and suppress pests. The main aim of this thesis was to examine how characteristics of common non-crop vegetation influence the abundance, diversity and association of natural enemies residing in two different agricultural systems (canola fields and vineyards). These crops were chosen to contrast annual and perennial cropping systems. Canola, grown directly after a pasture phase of a field, is Australia’s most important oilseed crop. Pressure on invertebrates may be greater due to level of disturbance; in contrast, vineyards are often surrounded with various types of vegetation which may enhance invertebrate abundance. To explore this aim, the effect of within crop, non-crop vegetation (grass strips within canola crop) on abundance of pests and natural enemies in the crop was examined. Invertebrates were collected across grass-canola transects in two fields planted to canola with unsown grass strips at intervals. Sampling with pitfall traps and vacuum sampling was completed to collect ground dwelling fauna during two sampling periods: post sowing and post emergence of canola seeds. Invertebrates collected were categorized mainly into two groups: pests and natural enemies. Abundant pests in the canola fields were red legged earth mite, Halotydeus destructor; blue oat mites, Penthaleus spp. and lucerne flea, Sminthurus viridis. Natural enemies considered were spiders (Araneae), predatory mites (Acari), predatory beetles (Coleoptera) and parasitoids (Hymenoptera). In general more predators and parasitoids were found in the unmown grasses of grass strips and more pests in mown sections of the grass strips and overall pests were more abundant in the crops than in grass strips. Vegetation types may have different influences on the biota that reside within them. Thus the effectiveness of different vegetation types in promoting conservation biological control was assessed at vineyards with two types of non-crop habitat: adjacent- grass with and without trees. Invertebrates were sampled in the canopy with sticky traps and on the ground with pitfall traps at 40 sites from six different vineyards at Yarra Valley (Victoria) for five consecutive months from bud burst to harvest (October through February). Collected invertebrates were classified as natural enemies and other invertebrates since none of the invertebrates collected are considered as pests in vineyards. The most abundant natural enemies were generalist predators (spiders and predatory beetles Coleoptera: Carabidae and Staphylinidae) and parasitoids (Hymenoptera), lacewings (Neuroptera), hover flies (Diptera: Syrphidae) and other predatory Diptera (Asilidae, Empididae and Tachinidae), predatory thrips (Thysanoptera), predatory Hemiptera, and ladybird beetles…

Subjects/Keywords: vegetation; natural enemies

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APA (6^th Edition):

Ghosh, P. R. (2012). Effect of vegetation diversity on natural enemy abundance in two agricultural contexts. (Masters Thesis). University of Melbourne. Retrieved from http://hdl.handle.net/11343/37323

Chicago Manual of Style (16^th Edition):

Ghosh, Purabi R. “Effect of vegetation diversity on natural enemy abundance in two agricultural contexts.” 2012. Masters Thesis, University of Melbourne. Accessed January 26, 2021. http://hdl.handle.net/11343/37323.

MLA Handbook (7^th Edition):

Ghosh, Purabi R. “Effect of vegetation diversity on natural enemy abundance in two agricultural contexts.” 2012. Web. 26 Jan 2021.

Vancouver:

Ghosh PR. Effect of vegetation diversity on natural enemy abundance in two agricultural contexts. [Internet] [Masters thesis]. University of Melbourne; 2012. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/11343/37323.

Council of Science Editors:

Ghosh PR. Effect of vegetation diversity on natural enemy abundance in two agricultural contexts. [Masters Thesis]. University of Melbourne; 2012. Available from: http://hdl.handle.net/11343/37323

University of Alberta

2. Subramaniam, Ravindran. Identifying agronomic practices that conserve and enhance natural enemies.

Degree: MS, Department of Agricultural, Food, and Nutritional Science, 2010, University of Alberta

URL: https://era.library.ualberta.ca/files/fj236340s

► Yield losses from infestations of root maggots (Delia spp.) (Diptera: Anthomyiidae) can be severe in canola crops in central Alberta. Studies were undertaken in central… (more)

Subjects/Keywords: Canola; Natural Enemies; Root Maggots

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APA (6^th Edition):

Subramaniam, R. (2010). Identifying agronomic practices that conserve and enhance natural enemies. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/fj236340s

Chicago Manual of Style (16^th Edition):

Subramaniam, Ravindran. “Identifying agronomic practices that conserve and enhance natural enemies.” 2010. Masters Thesis, University of Alberta. Accessed January 26, 2021. https://era.library.ualberta.ca/files/fj236340s.

MLA Handbook (7^th Edition):

Subramaniam, Ravindran. “Identifying agronomic practices that conserve and enhance natural enemies.” 2010. Web. 26 Jan 2021.

Vancouver:

Subramaniam R. Identifying agronomic practices that conserve and enhance natural enemies. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2021 Jan 26]. Available from: https://era.library.ualberta.ca/files/fj236340s.

Council of Science Editors:

Subramaniam R. Identifying agronomic practices that conserve and enhance natural enemies. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/fj236340s

University of Maryland

3. Rosario-Lebron, Armando. The Effect of Barley Cover Crop Residue and Herbicide Management on the Arthropod Community in No-Till Soybeans.

Degree: Entomology, 2016, University of Maryland

URL: http://hdl.handle.net/1903/19022

► Cover cropping has long been used as a method of reducing soil erosion, increasing soil quality and suppressing weeds. However, effects of cover crops in… (more)

Subjects/Keywords: Agriculture; Cover Crop; Insect pests; Natural Enemies

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APA (6^th Edition):

Rosario-Lebron, A. (2016). The Effect of Barley Cover Crop Residue and Herbicide Management on the Arthropod Community in No-Till Soybeans. (Thesis). University of Maryland. Retrieved from http://hdl.handle.net/1903/19022

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rosario-Lebron, Armando. “The Effect of Barley Cover Crop Residue and Herbicide Management on the Arthropod Community in No-Till Soybeans.” 2016. Thesis, University of Maryland. Accessed January 26, 2021. http://hdl.handle.net/1903/19022.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rosario-Lebron, Armando. “The Effect of Barley Cover Crop Residue and Herbicide Management on the Arthropod Community in No-Till Soybeans.” 2016. Web. 26 Jan 2021.

Vancouver:

Rosario-Lebron A. The Effect of Barley Cover Crop Residue and Herbicide Management on the Arthropod Community in No-Till Soybeans. [Internet] [Thesis]. University of Maryland; 2016. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/1903/19022.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rosario-Lebron A. The Effect of Barley Cover Crop Residue and Herbicide Management on the Arthropod Community in No-Till Soybeans. [Thesis]. University of Maryland; 2016. Available from: http://hdl.handle.net/1903/19022

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

4. Whalen, Rebecca Anne. Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean.

Degree: PhD, Entomology, 2016, Virginia Tech

URL: http://hdl.handle.net/10919/71653

► Arthropod natural enemies play a key role in controlling potentially damaging pest populations in agroecosystems. An abundant and diverse natural enemy community is associated with… (more)

▼ Arthropod natural enemies play a key role in controlling potentially damaging pest populations in agroecosystems. An abundant and diverse natural enemy community is associated with higher yields in a variety of crops. Certain aspects of soybean production can make a field more or less amenable to a robust natural enemy community. For instance, commonly used broad-spectrum insecticides which are highly toxic to most arthropods can decrease natural enemy densities and allow for secondary pest outbreaks. Selective insecticides that have less impact on natural enemy populations allow for pest control while preserving important predators. Another production decision that could alter natural enemy communities is the choice of cropping system, specifically planting early (full season) or late, after small grain harvest (double crop). My research objectives were to examine how 1) selective insecticides and 2) cropping system affect the density and diversity of natural enemies in Virginia soybean. To address the first objective I compared the natural enemy community in soybean plots that were exposed to selective insecticides, broad-spectrum insecticides or no insecticide. I sampled insects using three different techniques and found that the two selective insecticides I tested, both from a new class called diamides, did not reduce the natural enemy community compared to controls. To examine how cropping system affects the natural enemy community I sampled full season and double crop fields during the growing season for two years. In 2014 ground-dwelling spider diversity was higher in full season soybean. In both years, double crop soybeans had higher abundance of spiders and insect natural enemies on the ground and in the foliage compared with full season soybean. This was unexpected, since double crop soybeans are planted later than full season and arthropod populations would have less time to colonize and grow. When I compared diversity of a family of predatory beetles I found higher diversity in full season soybean. The similarity in spider and insect natural enemy diversity and abundance trends suggests that a greater number of species can co-exist in full season soybean, while in double crop soybeans a few dominant natural enemies thrive. Advisors/Committee Members: Herbert, D. Ames Jr. (committeechair), Kuhar, Thomas P. (committee member), Reisig, Dominic Duane (committee member), Pfeiffer, Douglas G. (committee member), Brewster, Carlyle C. (committee member).

Subjects/Keywords: Natural enemies; spiders; soybean; diversity; biological control

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APA (6^th Edition):

Whalen, R. A. (2016). Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/71653

Chicago Manual of Style (16^th Edition):

Whalen, Rebecca Anne. “Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean.” 2016. Doctoral Dissertation, Virginia Tech. Accessed January 26, 2021. http://hdl.handle.net/10919/71653.

MLA Handbook (7^th Edition):

Whalen, Rebecca Anne. “Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean.” 2016. Web. 26 Jan 2021.

Vancouver:

Whalen RA. Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean. [Internet] [Doctoral dissertation]. Virginia Tech; 2016. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10919/71653.

Council of Science Editors:

Whalen RA. Influence of Selective Insecticides and Cropping System on Arthropod Natural Enemies in Soybean. [Doctoral Dissertation]. Virginia Tech; 2016. Available from: http://hdl.handle.net/10919/71653

North-West University

5. Keulder, Rozelle. Oviposition site preference of lacewings in maize ecosystems and the effect of Bt maize on Chrysoperla pudica (Neuroptera: Chrysopidae) / Rozelle Keulder .

Degree: 2010, North-West University

URL: http://hdl.handle.net/10394/4469

► Resistance development and possible non–target effects have been of concern since the first deployment of genetically modified crops with insecticidal properties. It is especially at… (more)

▼ Resistance development and possible non–target effects have been of concern since the first deployment of genetically modified crops with insecticidal properties. It is especially at the third trophic level and with important predators such as lacewings (Chrysoperla spp.) (Neuroptera: Chrysopidae) where negative effects of Cry 1Ab protein could have adverse effects in agro–ecosystems. Monitoring of the effect of genetically modified Bt maize on non–target organisms is required by law in South–Africa. Neuroptera are excellent indicators of environmental and habitat transformation, and also include key species for signifying areas and faunas that require priority protection. Monitoring techniques, especially for insect eggs, are often labour intensive and time consuming. A study was conducted to determine the preferred oviposition site of Chrysoperla spp. on maize plants to facilitate time–effective searching for eggs of these beneficial insects. Furthermore we determined if the presence of aphids on plants influenced Chrysoperla spp. oviposition preference. Another study was conducted to evaluate the effect of indirect exposure of C. pudica to Cry 1Ab protein, through healthy Bt–maize feeding prey, on its biology. Daily flight activity patterns and the height at which chrysopid adults fly above the crop canopy were also determined, as well as the movement of adult Chrysoperla spp. between maize fields and adjacent headlands. A clear spatial oviposition pattern was observed on maize plants and oviposition was not random as reported in earlier studies. This data facilitates rapid monitoring of the presence of eggs in maize cropping systems and is also of use in general pest management. Choicetest data showed that females responded positively to host plants that were infested with aphids. Feeding studies in which C. pudica larvae were indirectly exposed to Bt–toxin at the 3rd trophic level, showed a limited effect of Bt–toxin on only a few of the parameters that were evaluated. The pupal period and percentage adult emergence of larvae exposed to an unusually high amount of Bt–toxin was significantly shorter and lower respectively than that of the control group. The overall result of this study, in which the possible effect of food quality (prey) was excluded, showed that Cry 1Ab protein had an adverse affect only on certain fitness components during the life cycle of C. pudica. However, since this study represented a worst–case scenario where diverse prey was not available to C. pudica, negligible effects is expected under field conditions where prey is more diverse. It was determined that chrysopids was most active between 16:00 – 23:00 and that they fly largely between 0.5 m – 2.5 m above ground level. An attempt was also made to quantify migration between different vegetations types. This part was terminated because of bad weather conditions at several occasions when the experiment was attempted. Chrysopids were never present in grassland vegetation, but an adjacent lucerne field maintained a large population. As the…

Subjects/Keywords: BT maize; Monitoring; Non-target insects; Predators; Scouting; Lacewings; Natural enemies; Risk assessment; Third tropic level; Sticky traps; Migration; Natural enemies

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APA (6^th Edition):

Keulder, R. (2010). Oviposition site preference of lacewings in maize ecosystems and the effect of Bt maize on Chrysoperla pudica (Neuroptera: Chrysopidae) / Rozelle Keulder . (Thesis). North-West University. Retrieved from http://hdl.handle.net/10394/4469

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Keulder, Rozelle. “Oviposition site preference of lacewings in maize ecosystems and the effect of Bt maize on Chrysoperla pudica (Neuroptera: Chrysopidae) / Rozelle Keulder .” 2010. Thesis, North-West University. Accessed January 26, 2021. http://hdl.handle.net/10394/4469.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Keulder, Rozelle. “Oviposition site preference of lacewings in maize ecosystems and the effect of Bt maize on Chrysoperla pudica (Neuroptera: Chrysopidae) / Rozelle Keulder .” 2010. Web. 26 Jan 2021.

Vancouver:

Keulder R. Oviposition site preference of lacewings in maize ecosystems and the effect of Bt maize on Chrysoperla pudica (Neuroptera: Chrysopidae) / Rozelle Keulder . [Internet] [Thesis]. North-West University; 2010. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10394/4469.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Keulder R. Oviposition site preference of lacewings in maize ecosystems and the effect of Bt maize on Chrysoperla pudica (Neuroptera: Chrysopidae) / Rozelle Keulder . [Thesis]. North-West University; 2010. Available from: http://hdl.handle.net/10394/4469

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Berkeley

6. Mace-Hill, Kevi Claire. Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens.

Degree: Environmental Science, Policy, & Management, 2015, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/5jh3v7k9

► Growing populations and changing diets have put great pressure on food systems throughout the world and have lead to increasing agricultural intensification including the greater… (more)

▼ Growing populations and changing diets have put great pressure on food systems throughout the world and have lead to increasing agricultural intensification including the greater use of pesticides and fertilizers. Given the associated human and environmental health costs of intensification, the development of more sustainable practices is imperative. One such avenue is to make better use of natural ecosystem services, such as the use of conservation biological control to reduce reliance on pesticide. However, there are logistical and educational impediments to the more effective use of resident natural enemies through conservation biological control that need to be addressed. These include how other agricultural management practices impact biological control, and how managers can tell if it is working or when it will work. Along with pesticides, fertilizers are a defining aspect of modern agriculture, but their effect on biological control services has seldom been evaluated. The effects of plant quality on natural enemies are often overlooked developing biological control programs for insect pests in agriculture. An enhanced nutritional status of plants can fuel insect population growth because nitrogen is an important component of proteins that are known to be limiting for phytophagous insects. Additionally, nitrogen fertilizers directly and indirectly affect plant defenses. In this dissertation I used walnuts to address the effect of increased nitrogen availability to the host plant on walnut aphid it{Chromaphis juglandicola} and on parasitism by the specialist parasitoid it{Trioxys pallidus}. From laboratory experiments and field sampling, nitrogen content of foliage did not change aphid population growth rate or aphid size. However, in laboratory experiments added nitrogen decreased the number of mummies produced by female parasitoids over a 24 h period, but increased the proportion and the size of female offspring. Field sampling of walnut orchards showed no relationship between the percent parasitism of walnut aphids by it{T. pallidus} and nitrogen content of foliage. Although nitrogen fertilizer and plant quality can affect biological control in other crops, it did not appear to be a problem for biological control of walnut aphids.Biological control in action is often hard to visualize and even more difficult to quantify in the context of pest population management. Readily measured metrics are needed to accurately predict the effectiveness of biological control services: this would then allow managers to say, given this set of measurements, control of an insect pest can be expected today or at some point in the near future. Using walnuts and walnut aphids as a model system, I investigated whether activity measurements and diversity indices for the natural enemy assemblages present in walnut orchards would be good indicators of current and future biological control. While percent parasitism, predator:prey ratio, and natural enemy evenness were good indicators of current biological control, there…

Subjects/Keywords: Ecology; Entomology; Agriculture; Biological control; Cooperative Extension; Gardens; Natural enemies; Walnuts

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APA (6^th Edition):

Mace-Hill, K. C. (2015). Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/5jh3v7k9

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mace-Hill, Kevi Claire. “Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens.” 2015. Thesis, University of California – Berkeley. Accessed January 26, 2021. http://www.escholarship.org/uc/item/5jh3v7k9.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mace-Hill, Kevi Claire. “Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens.” 2015. Web. 26 Jan 2021.

Vancouver:

Mace-Hill KC. Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens. [Internet] [Thesis]. University of California – Berkeley; 2015. [cited 2021 Jan 26]. Available from: http://www.escholarship.org/uc/item/5jh3v7k9.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mace-Hill KC. Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens. [Thesis]. University of California – Berkeley; 2015. Available from: http://www.escholarship.org/uc/item/5jh3v7k9

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Federal de Viçosa

7. Ricardo Salles Tinôco. Inimigos naturais e lepidópteros desfolhadores associados à Elaeis guineensis Jacq., na Agropalma, Amazônia Brasileira.

Degree: 2008, Universidade Federal de Viçosa

URL: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=3195

►

O dendezeiro (Elaeis guineensis Jacq.) é originária da África (Guiné-Bissau), e foi introduzida no continente americano a partir do século XV. No Brasil, sua introdução… (more)

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O dendezeiro (Elaeis guineensis Jacq.) é originária da África (Guiné-Bissau), e foi introduzida no continente americano a partir do século XV. No Brasil, sua introdução se deu no estado da Bahia e a expansão do seu cultivo em escala comercial a partir de 1967. Qualquer fator que interfira na produtividade da dendeicultura é importante em razão da sua crescente expressão no Brasil, especialmente nos pólos emergentes de cultivos na região Norte. Insetos-praga representam um dos maiores problemas fitossanitários do dendezeiro, com maior ou menor importância dependendo do local de sua ocorrência, da variabilidade climática e da flora e fauna existentes. Desfolhadores mais danosos no estado do Pará são Brassolis sophorae, Opsiphanes invirae (Lepidoptera: Nymphalidae) e Sibine sp. (Lepidoptera: Limacodidae). O objetivo foi identificar, ao nível de família, gênero e/ou espécie, insetos entomófagos (parasitóides e predadores) e organismos entomopatógenos (bactérias, vírus e/ou nematóides) de lepidópteros desfolhadores no agroecossistema do dendezeiro, fornecendo subsídios para a realização de programas de controle biológico. Para isto, torna-se necessário identificar os agentes do controle biológico natural e entender dinâmicas populacionais e a biologia dessas espécies no agroecossistema do dendê. Este trabalho foi realizado em duas épocas diferentes, baixa e alta precipitação, nos plantios das fazendas do Complexo AGROPALMA no município de Tailândia, sudeste do estado do Pará. Lagartas parasitadas foram coletadas em campo e transportadas para os laboratórios de fitossanidade da Agropalma e de Entomologia da Embrapa Amazônia Oriental, em Belém, Pará. Pupas e lagartas foram individualizadas em potes plásticos transparentes em câmara tipo B.O.D. à 27C 1C, 75 10% UR e fotofase de 12 horas, até a emergência de parasitóides. Os exemplares foram montados e ou colocados em álcool 70% e enviados para identificação. Lagartas infectadas por vírus e fungos foram congeladas à -20C em sacos plásticos e separadas por espécie de hospedeiro e área encontrada e enviadas para identificação na Universidade Federal de Viçosa. Trinta e cinco espécies foram coletadas e levadas a taxonomistas para identificação, sendo 28 espécies de 18 gêneros em 10 famílias da entomofauna benéfica mais 3 gêneros de fungos e 4 espécies pragas infectadas por vírus. Doze dessas foram identificadas ao nível de espécie com pelo menos uma espécie ainda não descrita. Destaque para algumas espécies do gênero Conura por apresentar alta fecundidade e ciclo de vida curto; espécies de Cotesia com ampla utilização em programas de controle biológico em todo o mundo e Alcaeorrhynchus grandis (Heteroptera: Pentatomidae), que controlam surtos de lagartas desfolhadoras e os agentes entomopatogênicos, que causam altas taxas de infecções em lepidópteros-praga, mostram potencial para serem usados em programas de controle biológico no MIP do dendê.

The dende tree (Elaeis guineensis Jacq.) comes from Africa (Guiné-Bissau), and it was introduced in America during the XV century. In…

Advisors/Committee Members: Walkymário de Paulo Lemos, José Cola Zanuncio, Teresinha Vinha Zanuncio, Evaldo Ferreira Vilela, Simon Luke Elliot, José Inácio Lacerda Moura, Eraldo Rodrigues de Lima.

Subjects/Keywords: Dendê; Inimigos naturais; Amazônia Brasileira; FITOSSANIDADE; Dende; Natural enemies; Brazilian Amazon

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APA (6^th Edition):

Tinôco, R. S. (2008). Inimigos naturais e lepidópteros desfolhadores associados à Elaeis guineensis Jacq., na Agropalma, Amazônia Brasileira. (Thesis). Universidade Federal de Viçosa. Retrieved from http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=3195

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tinôco, Ricardo Salles. “Inimigos naturais e lepidópteros desfolhadores associados à Elaeis guineensis Jacq., na Agropalma, Amazônia Brasileira.” 2008. Thesis, Universidade Federal de Viçosa. Accessed January 26, 2021. http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=3195.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tinôco, Ricardo Salles. “Inimigos naturais e lepidópteros desfolhadores associados à Elaeis guineensis Jacq., na Agropalma, Amazônia Brasileira.” 2008. Web. 26 Jan 2021.

Vancouver:

Tinôco RS. Inimigos naturais e lepidópteros desfolhadores associados à Elaeis guineensis Jacq., na Agropalma, Amazônia Brasileira. [Internet] [Thesis]. Universidade Federal de Viçosa; 2008. [cited 2021 Jan 26]. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=3195.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tinôco RS. Inimigos naturais e lepidópteros desfolhadores associados à Elaeis guineensis Jacq., na Agropalma, Amazônia Brasileira. [Thesis]. Universidade Federal de Viçosa; 2008. Available from: http://www.tede.ufv.br/tedesimplificado/tde_busca/arquivo.php?codArquivo=3195

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kwame Nkrumah University of Science and Technology

8. Baidoo, P. K. Comparing the Effectiveness of Garlic (Allium sativum L.) and Hot Pepper (Capsicum frutescens L.) in the Management of the Major Pests of Cabbage Brassica oleracea (L.).

Degree: 2016, Kwame Nkrumah University of Science and Technology

URL: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11093

►

The use of chemical insecticides in crop production has resulted in increased food production in Africa, but their use has resulted in the destruction of… (more)

Subjects/Keywords: Cheilonemes; emamectin benzoate; Hellula undalis; natural enemies; Plutella xylostella

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APA (6^th Edition):

Baidoo, P. K. (2016). Comparing the Effectiveness of Garlic (Allium sativum L.) and Hot Pepper (Capsicum frutescens L.) in the Management of the Major Pests of Cabbage Brassica oleracea (L.). (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11093

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Baidoo, P K. “Comparing the Effectiveness of Garlic (Allium sativum L.) and Hot Pepper (Capsicum frutescens L.) in the Management of the Major Pests of Cabbage Brassica oleracea (L.).” 2016. Thesis, Kwame Nkrumah University of Science and Technology. Accessed January 26, 2021. http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11093.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Baidoo, P K. “Comparing the Effectiveness of Garlic (Allium sativum L.) and Hot Pepper (Capsicum frutescens L.) in the Management of the Major Pests of Cabbage Brassica oleracea (L.).” 2016. Web. 26 Jan 2021.

Vancouver:

Baidoo PK. Comparing the Effectiveness of Garlic (Allium sativum L.) and Hot Pepper (Capsicum frutescens L.) in the Management of the Major Pests of Cabbage Brassica oleracea (L.). [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2016. [cited 2021 Jan 26]. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11093.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Baidoo PK. Comparing the Effectiveness of Garlic (Allium sativum L.) and Hot Pepper (Capsicum frutescens L.) in the Management of the Major Pests of Cabbage Brassica oleracea (L.). [Thesis]. Kwame Nkrumah University of Science and Technology; 2016. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11093

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Kwame Nkrumah University of Science and Technology

9. Mochiah, M. B. Effects of mulching materials on agronomic characteristics, pests of pepper (Capsicum annuum L.) and their natural enemies population.

Degree: 2012, Kwame Nkrumah University of Science and Technology

URL: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11104

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The trial was to study the effect of different mulching materials on agronomic characteristics, pests and their subsequent effect on the natural enemies of the… (more)

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The trial was to study the effect of different mulching materials on agronomic characteristics, pests and their subsequent effect on the natural enemies of the pests of pepper (Capsicum annuum). A field experiment was conducted at the Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology (KNUST), between December, 2010 and March, 2011. The mulching materials used were (1) straw mulch, (2) plastic mulch and (3) live-mulch of cowpea plant. The experimental field contained fifteen plots using a randomised complete block design in three replications. Parameters measured were pests of Capsicum annuum, some natural enemies of the pests, days to 50% flowering, plant height, plant girth, damage caused and yield assessment which included damaged fruits caused by the pests, number of fruits, fruit weight (in grams), and percentage increase in fruit yield. Plant height was seemingly highest under straw mulched soils. Straw mulch also flowered early as compared to the live-mulch of cowpea and plastic mulch but the margin was narrow. None of the mulches exhibited higher pest suppression ability over the other. However, Straw mulch had apparently larger population of natural enemies than the other treatments. Damaged fruits in the three mulching materials did not differ significantly. Control plot soils had significantly (P<0.05) higher temperatures than the mulched soils. The results indicated that straw mulch enhanced plant height and increased fruit number and percentage yield whilst live-mulch of cowpea and plastic mulch reduced plant height, fruit number and percentage yield. Data generated in this study have shown that cowpea mulch may be more effective in suppressing pest populations of pepper but straw mulch may provide a better refuge for the natural enemies and should be recommended as an integral option for pest management in pepper production. Ad you may be interested in Full-text

Article published in Agriculture and Biology Journal of North America ISSN Print: 2151 - 7517, ISSN Online: 2151 - 75 25 , doi:10.5251/abjna.2012.3.6.253.261

knust

Subjects/Keywords: Mulching materials; Capsicum annuum; pests; natural enemies; soil temperatures

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mochiah, M. B. (2012). Effects of mulching materials on agronomic characteristics, pests of pepper (Capsicum annuum L.) and their natural enemies population. (Thesis). Kwame Nkrumah University of Science and Technology. Retrieved from http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mochiah, M B. “Effects of mulching materials on agronomic characteristics, pests of pepper (Capsicum annuum L.) and their natural enemies population.” 2012. Thesis, Kwame Nkrumah University of Science and Technology. Accessed January 26, 2021. http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mochiah, M B. “Effects of mulching materials on agronomic characteristics, pests of pepper (Capsicum annuum L.) and their natural enemies population.” 2012. Web. 26 Jan 2021.

Vancouver:

Mochiah MB. Effects of mulching materials on agronomic characteristics, pests of pepper (Capsicum annuum L.) and their natural enemies population. [Internet] [Thesis]. Kwame Nkrumah University of Science and Technology; 2012. [cited 2021 Jan 26]. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mochiah MB. Effects of mulching materials on agronomic characteristics, pests of pepper (Capsicum annuum L.) and their natural enemies population. [Thesis]. Kwame Nkrumah University of Science and Technology; 2012. Available from: http://dspace.knust.edu.gh:8080/jspui/handle/123456789/11104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Georgia

10. Doremus, Matthew Rice. Friend or foe?.

Degree: 2017, University of Georgia

URL: http://hdl.handle.net/10724/36705

► Insects and other animals commonly form symbioses with heritable bacteria. These symbioses often have profound impacts on their hosts including providing protection against natural enemies.… (more)

Subjects/Keywords: Symbiosis; heritable bacteria; co-infection; microbial ecology; natural enemies

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Doremus, M. R. (2017). Friend or foe?. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/36705

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Doremus, Matthew Rice. “Friend or foe?.” 2017. Thesis, University of Georgia. Accessed January 26, 2021. http://hdl.handle.net/10724/36705.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Doremus, Matthew Rice. “Friend or foe?.” 2017. Web. 26 Jan 2021.

Vancouver:

Doremus MR. Friend or foe?. [Internet] [Thesis]. University of Georgia; 2017. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10724/36705.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Doremus MR. Friend or foe?. [Thesis]. University of Georgia; 2017. Available from: http://hdl.handle.net/10724/36705

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kentucky

11. Pellecchia, Sarah. EMERALD ASH BORER DEVELOPMENT ACROSS A LATITUDINAL GRADIENT: IMPLICATIONS FOR BIOCONTROL.

Degree: 2020, University of Kentucky

URL: https://uknowledge.uky.edu/entomology_etds/55

► Emerald ash borer, EAB, (Agrilus planipennis Fairmaire) is an invasive beetle that kills ash trees. It was accidentally introduced from China, and has rapidly expanded… (more)

Subjects/Keywords: A. planipennis; Fraxinus; Natural Enemies; Biological Control; Establishment; Entomology; Forest Sciences

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pellecchia, S. (2020). EMERALD ASH BORER DEVELOPMENT ACROSS A LATITUDINAL GRADIENT: IMPLICATIONS FOR BIOCONTROL. (Masters Thesis). University of Kentucky. Retrieved from https://uknowledge.uky.edu/entomology_etds/55

Chicago Manual of Style (16^th Edition):

Pellecchia, Sarah. “EMERALD ASH BORER DEVELOPMENT ACROSS A LATITUDINAL GRADIENT: IMPLICATIONS FOR BIOCONTROL.” 2020. Masters Thesis, University of Kentucky. Accessed January 26, 2021. https://uknowledge.uky.edu/entomology_etds/55.

MLA Handbook (7^th Edition):

Pellecchia, Sarah. “EMERALD ASH BORER DEVELOPMENT ACROSS A LATITUDINAL GRADIENT: IMPLICATIONS FOR BIOCONTROL.” 2020. Web. 26 Jan 2021.

Vancouver:

Pellecchia S. EMERALD ASH BORER DEVELOPMENT ACROSS A LATITUDINAL GRADIENT: IMPLICATIONS FOR BIOCONTROL. [Internet] [Masters thesis]. University of Kentucky; 2020. [cited 2021 Jan 26]. Available from: https://uknowledge.uky.edu/entomology_etds/55.

Council of Science Editors:

Pellecchia S. EMERALD ASH BORER DEVELOPMENT ACROSS A LATITUDINAL GRADIENT: IMPLICATIONS FOR BIOCONTROL. [Masters Thesis]. University of Kentucky; 2020. Available from: https://uknowledge.uky.edu/entomology_etds/55

12. Neves, Juliana Alves. Dinâmica predador presa, relações funcionais e o potencial de Heterópteros no manejo de pragas.

Degree: PhD, Entomologia, 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-03062014-153807/ ;

►

Mediante as modificações ambientais realizadas por ações antrópicas, os sistemas ecológicos vêm sendo cada vez mais afetados pela perda de organismos, resultando em simplificações nas… (more)

Subjects/Keywords: Biological control; Controle biológico; Inimigo natural; Natural enemies; Pentatomidae; Pentatomidae; Reduviidae; Reduviidae

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Neves, J. A. (2014). Dinâmica predador presa, relações funcionais e o potencial de Heterópteros no manejo de pragas. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11146/tde-03062014-153807/ ;

Chicago Manual of Style (16^th Edition):

Neves, Juliana Alves. “Dinâmica predador presa, relações funcionais e o potencial de Heterópteros no manejo de pragas.” 2014. Doctoral Dissertation, University of São Paulo. Accessed January 26, 2021. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-03062014-153807/ ;.

MLA Handbook (7^th Edition):

Neves, Juliana Alves. “Dinâmica predador presa, relações funcionais e o potencial de Heterópteros no manejo de pragas.” 2014. Web. 26 Jan 2021.

Vancouver:

Neves JA. Dinâmica predador presa, relações funcionais e o potencial de Heterópteros no manejo de pragas. [Internet] [Doctoral dissertation]. University of São Paulo; 2014. [cited 2021 Jan 26]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-03062014-153807/ ;.

Council of Science Editors:

Neves JA. Dinâmica predador presa, relações funcionais e o potencial de Heterópteros no manejo de pragas. [Doctoral Dissertation]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-03062014-153807/ ;

Swedish University of Agricultural Sciences

13. Miranda Ortiz, Freddy. Biological control of diamondback moth.

Degree: 2011, Swedish University of Agricultural Sciences

URL: http://pub.epsilon.slu.se/8073/

► The diamondback moth Plutella xylostella L. (Lepidoptera: Plutellidae) is a serious pest of economically important crucifer crops such as cabbage. The moth has developed resistance… (more)

▼ The diamondback moth Plutella xylostella L. (Lepidoptera: Plutellidae) is a serious pest of economically important crucifer crops such as cabbage. The moth has developed resistance to all tested insecticides and further studies on the potential role of factors affecting P. xylostella survival, including natural enemies, are urgently needed. One aim of this thesis was to identify the species that are natural enemies of P. xylostella and to evaluate their role in the natural biological control of this pest insect. Another aim was to gain knowledge that could be used to develop biological pest control methods with the potential for high efficacy against P. xylostella, thus avoiding the side effects of traditional chemical control while maintaining production and profits. This study was carried out in Estelí, Nicaragua during five cropping seasons, from 2006 to 2008. The results indicate that there is a broad spectrum of predators present in habitats within and around cabbage fields, and that these have the capacity to feed on P. xylostella eggs and larvae under laboratory conditions. The predators with the highest consumption rates were insect larvae (Syrphidae) and spiders in the families Linyphiidae and Salticidae. The most abundant predators, which also had the highest consumption rate and consequently the highest potential for suppressing P. xylostella populations, were spiders (Lycosidae) and rove beetles (Staphylinidae), although sheet weaving spiders, jumping spiders, assassin bugs (Reduviidae) and damsel bugs (Nabidae) may also be important. It is concluded that these generalist predators should be considered for further study in the field as candidate species with a role in the management of the pest P. xylostella. An exclusion experiment in the field showed that flying and ground dwelling natural enemies of P. xylostella interact negatively with each other. In another study, leaf damage was found to be higher in insecticide treated fields than in untreated fields as a combined consequence of insecticide resistance in the pest and lower predation from natural enemies which are reduced in number by the insecticide applications. In the last study, the main focus was to identify whether a combination of bio-control agents, i.e. parasitoids and a biological insecticide (Bt), interact additively, negatively or positively, in affecting the mortality of P. xylostella. It is concluded that a combination of control measures, including the promotion of predators and parasitoids, is probably needed to achieve sustainable biological control of the diamondback moth. To succeed with such approaches we must, however, learn more about the particular roles of different predators.

Subjects/Keywords: plutella xylostella; diadegma; araneae; natural enemies; pest insects; brassica oleracea; predators; bacillus thuringiensis; biological control; spiders; generalist insect predators; consumption rate; natural enemies; Plutella xylostella; Diadegma insulare; biological control

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Miranda Ortiz, F. (2011). Biological control of diamondback moth. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from http://pub.epsilon.slu.se/8073/

Chicago Manual of Style (16^th Edition):

Miranda Ortiz, Freddy. “Biological control of diamondback moth.” 2011. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed January 26, 2021. http://pub.epsilon.slu.se/8073/.

MLA Handbook (7^th Edition):

Miranda Ortiz, Freddy. “Biological control of diamondback moth.” 2011. Web. 26 Jan 2021.

Vancouver:

Miranda Ortiz F. Biological control of diamondback moth. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2011. [cited 2021 Jan 26]. Available from: http://pub.epsilon.slu.se/8073/.

Council of Science Editors:

Miranda Ortiz F. Biological control of diamondback moth. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2011. Available from: http://pub.epsilon.slu.se/8073/

14. Roubinet, Eve. Food webs in agroecosystems.

Degree: 2016, Swedish University of Agricultural Sciences

URL: https://pub.epsilon.slu.se/13146/

► The management of insect pests in modern agriculture is dominated by chemical control, despite wide recognition of its detrimental impact on the environment and human… (more)

▼ The management of insect pests in modern agriculture is dominated by chemical control, despite wide recognition of its detrimental impact on the environment and human health. As a sustainable alternative, the service of biological control of insect pests is provided by a diversity of natural enemies, such as ground dwelling carabids and spiders. A better understanding of natural enemy communities and the feeding relationship between natural enemies and their prey is therefore crucial to better conserve and promote the provisioning of biological control in agricultural fields. To this end, we quantitatively summarized published studies that addressed the relationship between increased natural enemy diversity and biological control and studied moderation by biotic and abiotic factors. The results of this meta-analysis support an overall positive effect of increased natural enemy diversity on herbivore suppression, and suggest this effect is lessened by an increase of prey diversity. I then focused on communities of generalist, ground dwelling predators controlling aphids in cereal fields. I used recently developed DNA based molecular gut content analysis to study the feeding relationships between predators and their prey, i.e., food webs, and their implications for biological control. I investigated the effects and underlying mechanisms of increased predator diversity on aphid biological control in manipulative field cage experiments, and identified feeding interactions in relation to the availability of predators and prey during the growing season in field conditions. I showed that generalist predators appear to be functionally redundant in the provisioning of cereal aphid biological control, when considering short time periods. However, when the entire cropping season is considered the importance of different predators as aphid biological control agents varied, which suggests that high predator diversity may provide a more stable biological control service over time. The findings of this thesis support the design of conservation strategies that promote predator diversity and high levels of non-pest extraguild prey in order to sustain generalist ground dwelling predators and secure their contribution to biological control services in agricultural fields.

Subjects/Keywords: food chains; agroecosystems; biological control; pest insects; natural enemies; carabidae; araneae; aphidoidea; cereal crops; predator prey relations; predators; biodiversity; Natural enemies; Carabids; Spiders; Aphid; Cereal; Redundancy; Stability

15 more images…

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Roubinet, E. (2016). Food webs in agroecosystems. (Doctoral Dissertation). Swedish University of Agricultural Sciences. Retrieved from https://pub.epsilon.slu.se/13146/

Chicago Manual of Style (16^th Edition):

Roubinet, Eve. “Food webs in agroecosystems.” 2016. Doctoral Dissertation, Swedish University of Agricultural Sciences. Accessed January 26, 2021. https://pub.epsilon.slu.se/13146/.

MLA Handbook (7^th Edition):

Roubinet, Eve. “Food webs in agroecosystems.” 2016. Web. 26 Jan 2021.

Vancouver:

Roubinet E. Food webs in agroecosystems. [Internet] [Doctoral dissertation]. Swedish University of Agricultural Sciences; 2016. [cited 2021 Jan 26]. Available from: https://pub.epsilon.slu.se/13146/.

Council of Science Editors:

Roubinet E. Food webs in agroecosystems. [Doctoral Dissertation]. Swedish University of Agricultural Sciences; 2016. Available from: https://pub.epsilon.slu.se/13146/

15. Matos, Sidnéia Terezinha Soares de [UNESP]. Aspectos ecológicos de insetos predadores e fitófagos associados à nogueira-macadâmia em Jaboticabal, São Paulo.

Degree: 2017, Universidade Estadual Paulista

URL: http://hdl.handle.net/11449/150258

►

A nogueira-macadâmia (Macadamia integrifolia Maiden e Betche), originária da Austrália, encontra-se em expansão no Brasil. Por ser uma cultura recentemente introduzida no País, a maioria… (more)

▼

A nogueira-macadâmia (Macadamia integrifolia Maiden e Betche), originária da Austrália, encontra-se em expansão no Brasil. Por ser uma cultura recentemente introduzida no País, a maioria das informações e as tecnologias recomendadas para sua produção foram adaptadas de pesquisas efetuadas para as condições edafoclimáticas dos Estados Unidos e da Austrália. Esse fato ressalta a necessidade de se desenvolver estudos sobre a fauna entomológica, visando ao manejo integrado de pragas dessa nogueira. No presente estudo, foi realizado levantamento populacional de insetos em nogueira-macadâmia em Jaboticabal, São Paulo. O objetivo foi identificar as principais espécies de insetos fitófagos e predadores e determinar as espécies predominantes por meio de estudos de flutuação populacional desses organismos em relação aos estádios fenológicos da cultura. O total de 540 exemplares de insetos predadores foram coletados pertencentes a 8 ordens, 13 famílias e 37 espécies; os insetos fitófagos totalizaram 7588 exemplares de 5 ordens, 35 famílias e 83 espécies. Os predadores Chrysoperla externa (Hagen) (Neuropetra: Chrysopidae), Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), Allograpta hastata Fluke (Diptera: Syrphidae) e Nusalala sp. (Neuroptera: Hemerobiidae) e os fitófagos Toxoptera aurantii (Fonscolombe) Hemiptera: Aphididae), Frankliniella gardeniae Moulton (Tysanoptera: Thripidae), Haplothrips gowdeyi (Franklin) (Tysanoptera: Phlaeothripidae), Mormidea sp., Piezodorus sp. (Hemiptera: Pentatomidae), Zicca sp. (Hemiptera: Coreidae), Stenocoris sp. (Hemiptera: Alydidae), Diabrotica speciosa (Germar) (Coleoptera: Chrysomelidae), Charidotis marginella (Fabricius) (Coleoptera: Chrysomelidae), Ophiderma sp. (Hemiptera: Membracidae), Epitragus sp.3 (Coleoptera Tenebrionidae) e Ptilodactyla sp.2 (Coleoptera: Ptilodactylidae) classificaram-se como predominantes. Os maiores índices de diversidade e picos populacionais das espécies predominantes ocorreram no estádio de floração.

The macadamia nut (Macadamia integrifolia Maiden e Betche) is native from Australia and is in expansion in Brazil. It was recently introduced in the country, therefore, most of the knowledges and technologies recommended for production were adapted from researches conducted for soil and climatic conditions in United States and Australia. This fact highlights the importance of studies about the entomological fauna, aiming at the integrated pest management of this walnut. In this study was conducted a population survey of insects in macadamia nut in Jaboticabal, São Paulo. The objective was to identify the main species of phytophagous insects and predators and to determine the predominant species through the study of its population dynamics in relation to the phenological stages of the crop. A total of 540 predatory insects specimens belonging to eigth orders, 13 families and summing up 37 species were collected. A total of 7588 specimens of phytophagous insects from five orders, 35 families and and summing up 83 species were captured. The insect predators…

Advisors/Committee Members: Cividanes, Francisco Jorge [UNESP], Cividanes, Terezinha Monteiro dos Santos [UNESP], Universidade Estadual Paulista (UNESP).

Subjects/Keywords: Diversidade; Flutuação populacional; Inimigos naturais; Pragas; Population fluctuation; Natural enemies; Pests; Macadamia integrifolia; Diversity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Matos, S. T. S. d. [. (2017). Aspectos ecológicos de insetos predadores e fitófagos associados à nogueira-macadâmia em Jaboticabal, São Paulo. (Thesis). Universidade Estadual Paulista. Retrieved from http://hdl.handle.net/11449/150258

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Matos, Sidnéia Terezinha Soares de [UNESP]. “Aspectos ecológicos de insetos predadores e fitófagos associados à nogueira-macadâmia em Jaboticabal, São Paulo.” 2017. Thesis, Universidade Estadual Paulista. Accessed January 26, 2021. http://hdl.handle.net/11449/150258.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Matos, Sidnéia Terezinha Soares de [UNESP]. “Aspectos ecológicos de insetos predadores e fitófagos associados à nogueira-macadâmia em Jaboticabal, São Paulo.” 2017. Web. 26 Jan 2021.

Vancouver:

Matos STSd[. Aspectos ecológicos de insetos predadores e fitófagos associados à nogueira-macadâmia em Jaboticabal, São Paulo. [Internet] [Thesis]. Universidade Estadual Paulista; 2017. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/11449/150258.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Matos STSd[. Aspectos ecológicos de insetos predadores e fitófagos associados à nogueira-macadâmia em Jaboticabal, São Paulo. [Thesis]. Universidade Estadual Paulista; 2017. Available from: http://hdl.handle.net/11449/150258

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Berkeley

16. Fernandez, Lisa. Lethal and Sublethal Effects of Pesticides Used in Western United States Orchards on Hippodamia convergens.

Degree: Environmental Science, Policy, & Management, 2015, University of California – Berkeley

URL: http://www.escholarship.org/uc/item/9ks9f104

► We examined the effects of two fungicides (copper+mancozeb and sulfur) and five reduced-risk insecticides (chlorantraniliprole, cyantraniliprole, lambda-cyhalothrin, novaluron, and spinetoram) on Hippodamia convergens (Guerin-Meneville) (Col.:… (more)

▼ We examined the effects of two fungicides (copper+mancozeb and sulfur) and five reduced-risk insecticides (chlorantraniliprole, cyantraniliprole, lambda-cyhalothrin, novaluron, and spinetoram) on Hippodamia convergens (Guerin-Meneville) (Col.: Coccinellidae), an important natural enemy in western United States orchards. Acute toxicity of pesticides was tested via three different exposure routes: oral, residual, and topical. Lambda-cyhalothrin caused significant mortality to adults and larvae via all exposure routes (57-100%). Cyantraniliprole was toxic to adults and larvae when orally exposed, but it was less toxic for other exposure routes. Cyantraniliprole, spinetoram, and novaluron were moderately toxic to larvae when topically exposed (40-63% mortality), but not to adults (<4% mortality). Chlorantraniliprole, copper+mancozeb, and sulfur demonstrated low toxicity (<30% mortality) to adults and larvae, regardless of exposure route. Lethal and sublethal effects were tested by treating insects topically in the inactive stages (egg, pupa) and simultaneously through oral, residual, and topical exposure in the active stages (larva, adult). Larvae were vulnerable to all pesticides except copper+mancozeb, and lambda-cyhalothrin also reduced survivorship for pupae and eggs (3-19%). Exposure to novaluron lowered survivorship for treated eggs (14%) and fertility of treated females (9%). Fecundity was increased by exposure to copper+mancozeb. Corrected acute adult mortality alone was sufficient to detect the harmful effects of chlorantraniliprole and lambda-cyhalothrin, but combined effects of corrected adult mortality and daily fertility were needed to highlight the harmful effect of novaluron. Estimates of the intrinsic rate of increase indicated substantial delays in the population recovery of H. convergens following exposure to chlorantraniliprole, cyantraniliprole, novaluron, and sulfur, and local extinction for lambda-cyhalothrin. The effects of a combination pesticide (chlorantraniliprole and lambda-cyhalothrin) were tested on larvae and adults exposed to residues aged 0, 1, 2, 4, 8, 16, and 38 d in a laboratory or field setting. For field-aged residues, both life stages were highly susceptible to 0 and 1d residue (> 80%), but acute mortality declined for residues aged 16 and 38 d adults (< 53%). For laboratory-aged residues, both life stages had high acute mortality rates (> 80%) regardless of residue age. The rate of decay of the pesticide impact on adults (0.059) was greater than for larvae (0.024) for the field-aged residues, and greater than for adults exposed to laboratory-aged residues (a = 0.004). The results indicate that even reduced-risk insecticides may have harmful effects that vary by pesticide, life stage, and exposure route. Pesticide risk assessments can be improved by using lethal and sublethal data to estimate changes in population growth, and by incorporating both laboratory and field-based bioassays to better understand how pesticides impact natural enemies in the field.

Subjects/Keywords: Entomology; Toxicology; Agriculture; biological control; ecotoxicology; fungicides; Hippodamia convergens; natural enemies; reduced-risk

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APA (6^th Edition):

Fernandez, L. (2015). Lethal and Sublethal Effects of Pesticides Used in Western United States Orchards on Hippodamia convergens. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/9ks9f104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fernandez, Lisa. “Lethal and Sublethal Effects of Pesticides Used in Western United States Orchards on Hippodamia convergens.” 2015. Thesis, University of California – Berkeley. Accessed January 26, 2021. http://www.escholarship.org/uc/item/9ks9f104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fernandez, Lisa. “Lethal and Sublethal Effects of Pesticides Used in Western United States Orchards on Hippodamia convergens.” 2015. Web. 26 Jan 2021.

Vancouver:

Fernandez L. Lethal and Sublethal Effects of Pesticides Used in Western United States Orchards on Hippodamia convergens. [Internet] [Thesis]. University of California – Berkeley; 2015. [cited 2021 Jan 26]. Available from: http://www.escholarship.org/uc/item/9ks9f104.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fernandez L. Lethal and Sublethal Effects of Pesticides Used in Western United States Orchards on Hippodamia convergens. [Thesis]. University of California – Berkeley; 2015. Available from: http://www.escholarship.org/uc/item/9ks9f104

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Lopes, Paula Caroline. Eficiência de populações de Euseius concordis (Acari: Phytoseiidae) e espécies afins no controle do microácaro-do-tomateiro, Aculops lycopersici (Acari: Eriophyidae).

Degree: PhD, Entomologia, 2015, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-13052015-163634/ ;

► A cultura do tomateiro é de ciclo curto e de difícil manejo devido a vários problemas fitossanitários que a afetam. Aculops lycopersici (Tryon) (Eriophyidae) é… (more)

▼ A cultura do tomateiro é de ciclo curto e de difícil manejo devido a vários problemas fitossanitários que a afetam. Aculops lycopersici (Tryon) (Eriophyidae) é uma severa praga do tomateiro em diversos países. Seu controle é geralmente baseado no uso de agroquímicos, mas o controle biológico é uma ferramenta potencial no manejo integrado dessa praga. Ácaros predadores da família Phytoseiidae (Mesostigmata) tem se mostrado bons agentes de controle de outros ácaros em diferentes culturas. Experimentos de laboratório tem sugerido o potencial de uma população do fitoseídeo Euseius concordis (Chant) como agente de controle desta praga. É possível que outras populações de E. concordis ou que outras espécies taxonomicamente próximas possam também apresentar potencial para controlar esta praga. A correta identificação dos agentes de controle é essencial para o sucesso em sua utilização, mas isto é usualmente mais difícil no caso de espécies muito parecidas (espécies crípticas ou grupo de espécies), pelo usual desconhecimento das possíveis variações das características consideradas na identificação. Os objetivos deste estudo consistiram da detalhada caracterização da variação morfológica de E. concordis, quando exposto a combinações de duas temperaturas e duas dietas; a caracterização morfológica de espécies próximas a E. concordis (com esta constituindo o grupo concordis) e a avaliação destas em laboratório e em telado como potenciais agentes para o controle de A. lycopersici. As dimensões de estruturas taxonomicamente importantes de espécimes de Euseius concordis foram em média mais longas a 20 que a 28 °C, e quando estes foram alimentados com pólen do que com Aceria litchii (Keifer) (Eriophyidae). As avaliações morfológicas permitiram a confirmação de que Euseius flechtmanni Denmark & Muma seja sinônimo júnior de E. concordis, assim como a determinação de que: Euseius caseariae De Leon também seja sinônimo júnior de E. concordis, Euseius ho (De Leon) e Euseius brazilli (El-Banhawy) sejam sinônimos juniores de Euseius mesembrinus (Dean) e de que Euseius vivax (Chant & Baker) não seja sinônimo júnior de Euseius fructicolus (Gonzalez & Schuster), como anteriormente se considerava. As avaliações morfológicas também permitiram a elaboração de uma chave taxonômica para a separação das espécies incluídas no grupo concordis. Dentre as espécies avaliadas em laboratório como potenciais agentes de controle, a população de E. concordis de Petrolina, estado de Pernambuco, foi a mais promissora. Avaliações feitas em telados mostraram que ácaros daquela população e ácaros da mesma espécie proveniente de Piracicaba conseguiram se manter em tomateiros infestados com A. lycopersici, reduzindo a população desta praga quando 50 predadores foram liberados por tomateiro no início da infestação. Conclui-se que as populações de E. concordis de Petrolina e Piracicaba tem potencial como agentes de controle de A. lycopersici, sendo recomendada a condução de estudos complementares que possam eventualmente levar ao uso prático daqueles… Advisors/Committee Members: Moraes, Gilberto José de.

Subjects/Keywords: Ácaros predadores; Biological control; Controle biológico; Inimigos naturais; Natural enemies; Predatory mites

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lopes, P. C. (2015). Eficiência de populações de Euseius concordis (Acari: Phytoseiidae) e espécies afins no controle do microácaro-do-tomateiro, Aculops lycopersici (Acari: Eriophyidae). (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11146/tde-13052015-163634/ ;

Chicago Manual of Style (16^th Edition):

Lopes, Paula Caroline. “Eficiência de populações de Euseius concordis (Acari: Phytoseiidae) e espécies afins no controle do microácaro-do-tomateiro, Aculops lycopersici (Acari: Eriophyidae).” 2015. Doctoral Dissertation, University of São Paulo. Accessed January 26, 2021. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-13052015-163634/ ;.

MLA Handbook (7^th Edition):

Lopes, Paula Caroline. “Eficiência de populações de Euseius concordis (Acari: Phytoseiidae) e espécies afins no controle do microácaro-do-tomateiro, Aculops lycopersici (Acari: Eriophyidae).” 2015. Web. 26 Jan 2021.

Vancouver:

Lopes PC. Eficiência de populações de Euseius concordis (Acari: Phytoseiidae) e espécies afins no controle do microácaro-do-tomateiro, Aculops lycopersici (Acari: Eriophyidae). [Internet] [Doctoral dissertation]. University of São Paulo; 2015. [cited 2021 Jan 26]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-13052015-163634/ ;.

Council of Science Editors:

Lopes PC. Eficiência de populações de Euseius concordis (Acari: Phytoseiidae) e espécies afins no controle do microácaro-do-tomateiro, Aculops lycopersici (Acari: Eriophyidae). [Doctoral Dissertation]. University of São Paulo; 2015. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-13052015-163634/ ;

18. Cavalcante, Ana Cristina Cerqueira. Ácaros predadores da família Phytoseiidae (Acari: Mesostigmata) para o controle do biótipo B da mosca-branca Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) no Brasil.

Degree: PhD, Entomologia, 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-25062014-095243/ ;

► A mosca-branca Bemisia tabaci (Gennadius) é considerada uma das principais pragas agrícolas. Seu controle é realizado principalmente com a utilização de inseticidas, que entretanto não… (more)

▼ A mosca-branca Bemisia tabaci (Gennadius) é considerada uma das principais pragas agrícolas. Seu controle é realizado principalmente com a utilização de inseticidas, que entretanto não tem funcionado a contento. Uma alternativa seria a utilização de ácaros predadores da família Phytoseiidae, como agentes de controle. O ácaro predador Amblyseius swirskii Athias-Henriot tem se mostrado um eficiente agente de controle desta praga em outros países, porém este não foi até o momento constatado no Brasil. Sua introdução poderia viabilizar o controle biológico da mosca-branca no país, sendo, porém, necessária a condução de estudos prévios, para avaliar sua eficiência como agente de controle do biótipo B de B. tabaci, encontrado no Brasil. Uma população de A. swirskii coletada na República de Benin e outra comercialmente disponível na Holanda foram recentemente introduzidas no Brasil para estudos. No primeiro estudo relatado neste documento, as duas populações foram comparadas quanto à habilidade de predação e oviposição quando alimentadas com ovos de B. tabaci de diferentes idades e com outros alimentos. Melhor desempenho foi apresentado pela população da Holanda, mas para ambas as populações, maiores níveis de predação e oviposição foram observados em ovos mais novos (< 24 h de idade) de B. tabaci. No segundo estudo avaliou-se o potencial biótico desta população quando alimentada com ovos de B. tabaci ou pólen de Typha domingensis Persoon, e o efeito de ambas as populações sobre larvas de Euseius concordis (Chant), fitoseídeo comumente encontrado no Brasil. A taxa intrínseca de aumento populacional foi relativamente alta em ambos os alimentos, sendo ligeiramente mais alta em ovos de B. tabaci que em pólen (respectivamente 0,29 e 0,25 fêmea/fêmea/dia). Fêmeas adultas de ambas as populações predaram larvas da própria espécie e, em maiores níveis, de E. concordis, independentemente da presença de pólen. No terceiro estudo, avaliou-se o potencial de populações brasileiras de fitoseídeos como predadores de B. tabaci, assim como o desempenho destes em outros alimentos. Os fitoseídeos avaliados foram Amblydromalus limonicus (Garman & McGregor), Amblyseius herbicolus (Chant), Amblyseius largoensis (Muma), Amblyseius tamatavensis (Blommers) e Neoseiulus tunus (De Leon). Todos predaram ovos de B. tabaci. Contudo, melhores resultados foram observados para A. herbicolus, A. tamatavensis e N. tunus. Os resultados sugerem que estas espécies sejam promissoras como agentes de controle de B. tabaci. No quarto estudo, avaliou-se o potencial biótico de A. tamatavensis quando alimentado com ovos de B. tabaci e seu desempenho no controle desta praga em plantas jovens de pimentão (Capsicum annuum L.). A taxa intrínseca de aumento populacional foi comparável à obtida para A. swriskii alimentando-se da mesma presa. Por outro lado, a liberação deste predador resultou em reduções de 60 a 80% nas densidades da praga, sugerindo que A. tamatavensis seja promissor como agente de controle de B. tabaci. Conclui-se que exista um grande potencial de se… Advisors/Committee Members: Moraes, Gilberto José de.

Subjects/Keywords: Ácaros predadores; Biological control; Controle biológico; Inimigos naturais; Natural enemies; Predatory mites

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Cavalcante, A. C. C. (2014). Ácaros predadores da família Phytoseiidae (Acari: Mesostigmata) para o controle do biótipo B da mosca-branca Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) no Brasil. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11146/tde-25062014-095243/ ;

Chicago Manual of Style (16^th Edition):

Cavalcante, Ana Cristina Cerqueira. “Ácaros predadores da família Phytoseiidae (Acari: Mesostigmata) para o controle do biótipo B da mosca-branca Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) no Brasil.” 2014. Doctoral Dissertation, University of São Paulo. Accessed January 26, 2021. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-25062014-095243/ ;.

MLA Handbook (7^th Edition):

Cavalcante, Ana Cristina Cerqueira. “Ácaros predadores da família Phytoseiidae (Acari: Mesostigmata) para o controle do biótipo B da mosca-branca Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) no Brasil.” 2014. Web. 26 Jan 2021.

Vancouver:

Cavalcante ACC. Ácaros predadores da família Phytoseiidae (Acari: Mesostigmata) para o controle do biótipo B da mosca-branca Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) no Brasil. [Internet] [Doctoral dissertation]. University of São Paulo; 2014. [cited 2021 Jan 26]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-25062014-095243/ ;.

Council of Science Editors:

Cavalcante ACC. Ácaros predadores da família Phytoseiidae (Acari: Mesostigmata) para o controle do biótipo B da mosca-branca Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) no Brasil. [Doctoral Dissertation]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-25062014-095243/ ;

19. Erler, Greice. Controle da broca da cana-de-açúcar Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) através de isca tóxica.

Degree: Mestrado, Entomologia, 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-26112010-144048/ ;

►

O objetivo desse trabalho foi estudar atrativos adicionados a inseticidas e usados na forma de isca tóxica no controle dos adultos de Diatraea saccharalis (Fabricius,… (more)

▼

O objetivo desse trabalho foi estudar atrativos adicionados a inseticidas e usados na forma de isca tóxica no controle dos adultos de Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) determinando as doses adequadas e distâncias de aplicação dessas iscas. Em laboratório, foram testadas diversas iscas, incluindo seletividade, idade e concentração das mesmas, escolha do inseticida e sua melhor dose, determinação da distância dentro da área de aplicação, efeito residual e atratividade a alguns inimigos naturais. A D. saccharalis foi mantida em condições controladas de temperatura (25+1ºC), umidade relativa (60+10%) e fotofase (14 horas). Foi avaliada a sua mortalidade 24 e 48 hs após a exposição às iscas. A seleção e concentração do atrativo e o inseticida foi feita através dos resultados que apresentaram eficiência superior a 80%. Dentre as diferentes concentrações de atrativos e de inseticidas foram obtidas às ideais para cada isca, que foram: ácido acético (2,5%); ácido acético + 3-metil-1-butanol (1,25%); calda de açúcar (20%) e açúcar (2,5%) adicionados ao cloridrato de cartape (2,0; 2,0; 1,5 e 2,0 g i.a. L-1 calda), respectivamente. Em relação ao raio de atratividade, verificou-se que a isca não atrai o adulto a longas distâncias sendo o raio de 50cm, tornando-se necessário aplicar as iscas em área total. Nos resultados obtidos do teste de atratividade aos inimigos naturais (Cotesia flavipes e Doru luteipes) foi verificado que apenas a C. flavipes foi atraída pela isca à base de melaço. Em campo, foi realizado um experimento aplicando a isca tóxica em área total. Os tratamentos foram: ácido acético (285 mL ha-1) + cloridrato de cartape (45 g i.a. ha-1), melaço (1,14L ha-1) + cloridrato de cartape (45 g i.a. ha-1), Bacillus thuringiensis (1L ha-1) + Hygrogen (1L ha-1) e triflumurom (38,4 g i.a. ha-1), este último, visando lagartas do 2º ínstar. Os tratamentos á base de B. thuringiesis e o triflumurom foram empregados como padrão. Os resultados foram analisados em função de amostragem de lagartas que surgiu após as aplicações. Os resultados mostraram que o tratamento que mais se destacou foi à base de melaço o qual foi superior ao controle químico triflumurom, inseticida regulador de crescimento, utilizado atualmente principalmente no oeste paulista, onde se encontram altos níveis de infestação da broca. Assim, a isca tóxica a base de melaço se torna mais uma alternativa no controle químico da D. saccharalis.

This work aims to study baits added to insecticides used as toxic baits in the control of moths of Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) determining their appropriate doses and distances of application. In laboratory, were tested different baits in terms of selectivity, age and concentration, choice of pesticide and ideal dosage, determining distances within the application area, residual effects and attractiveness to some natural enemies. The D. saccharalis was kept under controlled temperatures (25+1ºC), RH (60+10%) and photophase (14 hours). We evaluated its…

Advisors/Committee Members: Nakano, Octavio.

Subjects/Keywords: Atrativos químicos; attractive; Brocas (Insetos nocivos); Cana-de-açúcar; Inseticidas; Iscas; Lepidoptera.; natural enemies.; Pest

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Erler, G. (2010). Controle da broca da cana-de-açúcar Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) através de isca tóxica. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/11/11146/tde-26112010-144048/ ;

Chicago Manual of Style (16^th Edition):

Erler, Greice. “Controle da broca da cana-de-açúcar Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) através de isca tóxica.” 2010. Masters Thesis, University of São Paulo. Accessed January 26, 2021. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-26112010-144048/ ;.

MLA Handbook (7^th Edition):

Erler, Greice. “Controle da broca da cana-de-açúcar Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) através de isca tóxica.” 2010. Web. 26 Jan 2021.

Vancouver:

Erler G. Controle da broca da cana-de-açúcar Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) através de isca tóxica. [Internet] [Masters thesis]. University of São Paulo; 2010. [cited 2021 Jan 26]. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-26112010-144048/ ;.

Council of Science Editors:

Erler G. Controle da broca da cana-de-açúcar Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) através de isca tóxica. [Masters Thesis]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/11/11146/tde-26112010-144048/ ;

20. Khan, Mohd. Imran. Taxonomic studies on acridoidea, orthoptera with some observations on their natural enemies;.

Degree: Zoology, 2008, Aligarh Muslim University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/50032

Abstract not available newline newline

Bibliography p. 115-129

Advisors/Committee Members: Usmani, Mohd. Kamil.

Subjects/Keywords: Taxonomic Studies; Acridoidea; Orthoptera; Natural Enemies

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khan, M. I. (2008). Taxonomic studies on acridoidea, orthoptera with some observations on their natural enemies;. (Thesis). Aligarh Muslim University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/50032

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Khan, Mohd Imran. “Taxonomic studies on acridoidea, orthoptera with some observations on their natural enemies;.” 2008. Thesis, Aligarh Muslim University. Accessed January 26, 2021. http://shodhganga.inflibnet.ac.in/handle/10603/50032.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Khan, Mohd Imran. “Taxonomic studies on acridoidea, orthoptera with some observations on their natural enemies;.” 2008. Web. 26 Jan 2021.

Vancouver:

Khan MI. Taxonomic studies on acridoidea, orthoptera with some observations on their natural enemies;. [Internet] [Thesis]. Aligarh Muslim University; 2008. [cited 2021 Jan 26]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/50032.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Khan MI. Taxonomic studies on acridoidea, orthoptera with some observations on their natural enemies;. [Thesis]. Aligarh Muslim University; 2008. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/50032

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

North Carolina State University

21. Forehand, Lisa McNicol. Evaluation of Commercial Beneficial Insect Habitat Seed Mixtures for Organic Insect Pest Management.

Degree: MS, Fisheries and Wildlife Sciences, 2005, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/5

► A laboratory study conducted in 2003 evaluated the purity, composition and germination of three commercial mixes: Border Patrol' (BP), Beneficial Insect Mix (BIM), and Good… (more)

▼ A laboratory study conducted in 2003 evaluated the purity, composition and germination of three commercial mixes: Border Patrol' (BP), Beneficial Insect Mix (BIM), and Good Bug Blend (GBB). Regarding seed purity, BP had two weed species present and live beetles (Coleoptera: Bostrichidae) were present and actively feeding on seeds, BIM had one weed species present and one advertised species missing and GBB had fourteen different weed species present and three advertised species missing. The composition of BP found buckwheat and nasturtium to be the largest proportion by weight, while yarrow and evening primrose had the greatest seed numerical abundance. In BIM, the largest proportion of seeds by weight were coriander and candytuft, but numerically candytuft and Siberian wallflower were most abundant. The majority of seeds in GBB by both weight and numerical abundance, were clovers and alfalfa. Germination of seeds in BP was variable with two species having 0% germination, most likely due to seed feeding and pathogen growth from insect frass. BIM demonstrated good overall germination, with the exception of gayfeather. All seeds in GBB, except fennel, germinated at or above test values provided by the supplier. A field study was conducted in 2003 to evaluate three commonly grown flowers (Zinnia, Celosia and fennel) and three commercially available beneficial insect habitat seed blends (Peaceful Valley's Good Bug Blend, (GBB) Clyde Robin's Border Patrol' (BP) and Heirloom Seed's Beneficial Insect Mix (BIM)) to determine what insects were present in each of these different plant communities. Three experiments were conducted to evaluate mixes: 1) insect samples were collected using a D-vac, identified to family and evaluated by feeding guilds; 2) pitfall traps were collected to monitor ground beetle and ground-dwelling spider populations; and 3) dusk observations recorded visits by noctuid and hornworm moths. Celosia offered the largest diversity and abundance of predators and parasitoids in the flower plots, although the specimens collected were not found to be significant in the control of agronomic pests. Fennel, although not flowering until late summer, had the lowest overall abundance and diversity of all flowering blocks. The BP plantings had the highest diversity and abundance of herbivore crop pests as well as the highest instances of Lepidoptera pests during night observations. GBB had the highest abundance and diversity of beneficial parasitoids and predators. A field study was conducted in 2003 and 2004 to evaluate the effectiveness of a commercially available beneficial insect habitat (BIH) in decreasing pest caterpillar populations. Six pairs of organically managed tomato plots were established and Peaceful Valley's Good Bug Blend transplanted around the perimeter of treatment plots, while a brown-top millet border was planted around the controls. Helicoverpa zea and Manduca spp. eggs were monitored and categorized based on the fate of each egg after one week. When analyzed for the effect from year,… Advisors/Committee Members: Dr. Janet Spears, Committee Member (advisor), Dr. H.M. Linker, Committee Co-Chair (advisor), Dr. David B. Orr, Committee Co-Chair (advisor).

Subjects/Keywords: natural enemies; biocontro; wildflowers; biological control

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Forehand, L. M. (2005). Evaluation of Commercial Beneficial Insect Habitat Seed Mixtures for Organic Insect Pest Management. (Thesis). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/5

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Forehand, Lisa McNicol. “Evaluation of Commercial Beneficial Insect Habitat Seed Mixtures for Organic Insect Pest Management.” 2005. Thesis, North Carolina State University. Accessed January 26, 2021. http://www.lib.ncsu.edu/resolver/1840.16/5.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Forehand, Lisa McNicol. “Evaluation of Commercial Beneficial Insect Habitat Seed Mixtures for Organic Insect Pest Management.” 2005. Web. 26 Jan 2021.

Vancouver:

Forehand LM. Evaluation of Commercial Beneficial Insect Habitat Seed Mixtures for Organic Insect Pest Management. [Internet] [Thesis]. North Carolina State University; 2005. [cited 2021 Jan 26]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/5.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Forehand LM. Evaluation of Commercial Beneficial Insect Habitat Seed Mixtures for Organic Insect Pest Management. [Thesis]. North Carolina State University; 2005. Available from: http://www.lib.ncsu.edu/resolver/1840.16/5

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Purdue University

22. Quesada Machigua, Carlos Roberto. Effects Of Selected Pesticides On Calico Scale And Its Natural Enemies.

Degree: MS, Entomology, 2013, Purdue University

URL: http://docs.lib.purdue.edu/open_access_theses/132

► Calico scale (<em>Eulecanium cerasorum<em>) is an exotic pest of shade and ornamental trees. It feeds on phloem sap, reduces tree vigor and can ultimately… (more)

Subjects/Keywords: calico Scale; effects of insecticides on natural enemies; non-target effects; Agronomy and Crop Sciences

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APA (6^th Edition):

Quesada Machigua, C. R. (2013). Effects Of Selected Pesticides On Calico Scale And Its Natural Enemies. (Thesis). Purdue University. Retrieved from http://docs.lib.purdue.edu/open_access_theses/132

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Quesada Machigua, Carlos Roberto. “Effects Of Selected Pesticides On Calico Scale And Its Natural Enemies.” 2013. Thesis, Purdue University. Accessed January 26, 2021. http://docs.lib.purdue.edu/open_access_theses/132.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Quesada Machigua, Carlos Roberto. “Effects Of Selected Pesticides On Calico Scale And Its Natural Enemies.” 2013. Web. 26 Jan 2021.

Vancouver:

Quesada Machigua CR. Effects Of Selected Pesticides On Calico Scale And Its Natural Enemies. [Internet] [Thesis]. Purdue University; 2013. [cited 2021 Jan 26]. Available from: http://docs.lib.purdue.edu/open_access_theses/132.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Quesada Machigua CR. Effects Of Selected Pesticides On Calico Scale And Its Natural Enemies. [Thesis]. Purdue University; 2013. Available from: http://docs.lib.purdue.edu/open_access_theses/132

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Univerzitet u Beogradu

23. Janković, Marina P., 1982-. Predeono-ekološka analiza biljnih vašiju i njihovih prirodnih neprijatelja u agroekosistemima: diverzitet, biološka kontrola i taksonomski status parazitoida.

Degree: Biološki fakultet, 2016, Univerzitet u Beogradu

URL: https://fedorabg.bg.ac.rs/fedora/get/o:12549/bdef:Content/get

►

Ekologija - Predeona ekologija, Agroekologija, Entomologija / Ecology - Landscape ecology, Agroecology, Entomology

Procesi i dobra, koje ekosistemi pružaju čovečanstvu besplatno, a koji su esencijalni… (more)

▼

Ekologija - Predeona ekologija, Agroekologija, Entomologija / Ecology - Landscape ecology, Agroecology, Entomology

Procesi i dobra, koje ekosistemi pružaju čovečanstvu besplatno, a koji su esencijalni za njegov opstanak, nazivaju se ekosistemskim uslugama. Ekosistemske usluge, imaju svoju ekološku, socijalnu i ekonomsku vrednost, i za poljoprivredu imaju veliki značaj, jer utiču na kvalitet zemljišta, kontrolu štetočina, oprašivanje, a samim tim i na prinos useva. Upravljanje poljoprivrednim predelima, sa ciljem očuvanja biodiverziteta i ekosistemskih usluga, nemoguće je bez razumevanja prirode procesa koji na njih utiču. U predelima različite vrste insekata opažaju i koriste svoje okruženje na različit način. Na višim trofičkim nivoima vrste su u većoj meri osetljive na promene sredine, naročito kada imaju specifične zahteve u pogledu resursa ili staništa, a odlikuju se malom veličinom tela i slabim disperzivnim sposobnostima. Parazitoidi, kao značajni prirodni neprijatelji biljnih vašiju, smatraju se bitnim agensima biološke kontrole u mnogim agroekosistemima. Mnoge studije na istom model-sistemu u različitim područjima ili različitim godinama imaju oprečne rezultate u pogledu uticaja predeonih karakteristika na diverzitet, brojnost biljnih vašiju i njihovih parazitoida i biološku kontrolu. Očuvanje biodiverziteta i ekosistemskih servisa u poljoprivrednim predelima zahteva razumevanje ne samo strukture i kompozicije predela, već i funkcionalnog značaja predeonih elemenata za različite organizame i procese od interesa. Istraživanje, sprovedeno u periodu 2010-2012. godine, obuhvata dve predeonoekološke studije, koje su realizovane u dva odvojena područja (šira okolina Smedereva i područje Pančevačkog rita), kao i taksonomsko-faunističku analizu prikupljenog materijala. U istraživanju koje je sprovedeno u okolini Smedereva proučavan je interaktivni efekat lokalnih i predeonih faktora na brojnost i bogatstvo vrsta biljnih vašiju i njihovih prirodnih neprijatelja, kao i stope primarnog parazititizma i hiperparazitizma. Utvrđeno je da su ekosistemske kontra-usluge (pritisak biljnih vašiju i hiperparazitizam) jače izražene u poljima pšenice, u kojima su biljne vaši pokazale najjači odgovor na udeo poluprirodne žbunaste vegetacije u predelu...

Advisors/Committee Members: Tomanović, Željko, 1966-.

Subjects/Keywords: aphids; natural enemies; parasitoids; hyperparasitoids; landscape complexity; wheat; alfalfa; fallows; biological control

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Janković, Marina P., 1. (2016). Predeono-ekološka analiza biljnih vašiju i njihovih prirodnih neprijatelja u agroekosistemima: diverzitet, biološka kontrola i taksonomski status parazitoida. (Thesis). Univerzitet u Beogradu. Retrieved from https://fedorabg.bg.ac.rs/fedora/get/o:12549/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Janković, Marina P., 1982-. “Predeono-ekološka analiza biljnih vašiju i njihovih prirodnih neprijatelja u agroekosistemima: diverzitet, biološka kontrola i taksonomski status parazitoida.” 2016. Thesis, Univerzitet u Beogradu. Accessed January 26, 2021. https://fedorabg.bg.ac.rs/fedora/get/o:12549/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Janković, Marina P., 1982-. “Predeono-ekološka analiza biljnih vašiju i njihovih prirodnih neprijatelja u agroekosistemima: diverzitet, biološka kontrola i taksonomski status parazitoida.” 2016. Web. 26 Jan 2021.

Vancouver:

Janković, Marina P. 1. Predeono-ekološka analiza biljnih vašiju i njihovih prirodnih neprijatelja u agroekosistemima: diverzitet, biološka kontrola i taksonomski status parazitoida. [Internet] [Thesis]. Univerzitet u Beogradu; 2016. [cited 2021 Jan 26]. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:12549/bdef:Content/get.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Janković, Marina P. 1. Predeono-ekološka analiza biljnih vašiju i njihovih prirodnih neprijatelja u agroekosistemima: diverzitet, biološka kontrola i taksonomski status parazitoida. [Thesis]. Univerzitet u Beogradu; 2016. Available from: https://fedorabg.bg.ac.rs/fedora/get/o:12549/bdef:Content/get

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Håkansson, Michaela. Farming system and landscape complexity affects pollinators and predatory insect communities differently.

Degree: The Institute of Technology, 2014, Linköping UniversityLinköping University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-110051

► It has been argued that organic farming sustains a higher biodiversity than conventional farming. This might promote the ecosystem services that exist in agricultural… (more)

Subjects/Keywords: Organic farming; agricultural intensification; landscape heterogeneity; time since transition; bumblebees; solitary bees; hoverflies; natural enemies

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APA (6^th Edition):

Håkansson, M. (2014). Farming system and landscape complexity affects pollinators and predatory insect communities differently. (Thesis). Linköping UniversityLinköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-110051

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Håkansson, Michaela. “Farming system and landscape complexity affects pollinators and predatory insect communities differently.” 2014. Thesis, Linköping UniversityLinköping University. Accessed January 26, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-110051.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Håkansson, Michaela. “Farming system and landscape complexity affects pollinators and predatory insect communities differently.” 2014. Web. 26 Jan 2021.

Vancouver:

Håkansson M. Farming system and landscape complexity affects pollinators and predatory insect communities differently. [Internet] [Thesis]. Linköping UniversityLinköping University; 2014. [cited 2021 Jan 26]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-110051.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Håkansson M. Farming system and landscape complexity affects pollinators and predatory insect communities differently. [Thesis]. Linköping UniversityLinköping University; 2014. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-110051

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech

25. Brichler, Kirsten Nicole. Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops.

Degree: MSin Life Sciences, Entomology, 2020, Virginia Tech

URL: http://hdl.handle.net/10919/98469

► Invasive slug species the gray field slug, Deroceras reticulatum (Muller), and the marsh slug, Deroceras laeve, are major pests of maize and soybean grown in… (more)

▼ Invasive slug species the gray field slug, Deroceras reticulatum (Muller), and the marsh slug, Deroceras laeve, are major pests of maize and soybean grown in Virginia no-till systems. Slug feeding causes injury to young plants that, when severe, can reduce crop yield and necessitate replanting a field. Chemical control options are limited, and farmers may not be willing to use tillage as a control measure. Conserving arthropod slug predators may suppress pest populations below economic levels. Research is needed to understand how farming methods such as tillage type (e.g., no-till, strip tillage, vertical tillage) and cover crop use affect slugs and their predators. Our study investigated 1) how tillage type and cover crop use affected slug and slug predators, 2) if certain farming practices and field characteristics can be used to predict slug injury, and 3) if slugs preferred feeding on commonly-used cover crop species when offered with maize or soybean seedlings. Commercial production fields with different combinations of no tillage or reduced tillage, and planted with or without cover crops, were sampled to evaluate how these farming practices affect slugs and slug predators. Shingle traps and frames were used before planting and during early plant growth stages to collect and identify slug species; pitfall traps were used throughout the growing season to collect and identify slug predator species. To determine if slug feeding risk could be predicted, a survey of commercial production fields in the Shenandoah area was conducted and used to identify factors, if any, that influence slug feeding. Laboratory assays were used to determine feeding preference by offering slugs opportunity to feed on leaf tissue from a maize or soybean seedling or a mature cover crop species. We found that tillage type and use of cover crops did not affect the abundance of slugs, but that they did influence predator populations. The highest number of total predators were found in fields with reduced tillage, cover crops, and no insecticide use prior to crop emergence. Harvestmen were potentially the most impactful slug predator in the region. Field surveys suggested that no tested factor or interaction of factors affected slug injury to plants in commercial fields. Finally, we observed that slugs fed differently on soybean and maize tissue depending on cover crop species present. Advisors/Committee Members: Taylor, Sally V. (committeechair), Marek, Paul E. (committee member), Couvillon, Margaret J. (committee member).

Subjects/Keywords: slug; natural enemies; biological control; cover crops; conservation tillage; agriculture; maize; soybean

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Brichler, K. N. (2020). Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/98469

Chicago Manual of Style (16^th Edition):

Brichler, Kirsten Nicole. “Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops.” 2020. Masters Thesis, Virginia Tech. Accessed January 26, 2021. http://hdl.handle.net/10919/98469.

MLA Handbook (7^th Edition):

Brichler, Kirsten Nicole. “Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops.” 2020. Web. 26 Jan 2021.

Vancouver:

Brichler KN. Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops. [Internet] [Masters thesis]. Virginia Tech; 2020. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10919/98469.

Council of Science Editors:

Brichler KN. Effects of Farm Management Practices on Pest Slugs and Slug Predators in Field Crops. [Masters Thesis]. Virginia Tech; 2020. Available from: http://hdl.handle.net/10919/98469

University of Melbourne

26. SMITH, IAN. The potential of shelterbelts to enhance the abundance of natural enemies of agricultural pest arthropods.

Degree: 2014, University of Melbourne

URL: http://hdl.handle.net/11343/43253

► Due to past land clearing, the Australian rural landscape faces a range of environmental and economic challenges such as biodiversity loss, soil degradation and higher… (more)

▼ Due to past land clearing, the Australian rural landscape faces a range of environmental and economic challenges such as biodiversity loss, soil degradation and higher wind speeds. To combat these effects, land holders often utilise non-crop woody vegetation such as shelterbelts to protect crops and increase the long term sustainability of the site. The value of these shelterbelts is further increased if woody vegetation enhances the abundance of arthropods that are beneficial to agriculture, notably predatory species and parasitoids, acting as an incentive for further revegetation. Despite previous work on vegetation effects, there is limited research as to the specific characteristics of woody vegetation that causes the increased abundance. Therefore this study seeks to determine the specific resources and structure of shelterbelts that enhance natural enemy abundance. To examine this issue, 60 sites throughout the Yarra Valley were selected for assessment of different aspects of their structure regarding their location, canopy, shrub layer, ground cover and floral resources. At each of these sites, insect abundance was monitored using yellow sticky traps placed within each shelterbelt for one week once a month over 5 months. In addition, one of these sites was also selected for a manipulative experiment whereby leaf litter and porosity were increased or decreased. In the manipulative experiment, insect abundance within each treatment was also monitored using yellow sticky traps placed for one week, once a month over three months. A third trial assessed relative effects of shelterbelt resources or wind disruption on the distribution of natural enemies. At each site, insect abundance was measured across transects running perpendicular to a shelterbelt 84 m to the north through to 84 m south. The results of these experiments indicated that there were five aspects of shelterbelts and other non-crop woody vegetation that may influence different natural enemies, particularly parasitoid Hymenoptera and coccinellids. Aspects of shelterbelts that increased some species or group abundance included: being adjacent to riparian areas or perennial crops, ground cover structure such as grass height and ground coverage, the abundance of floral resources particularly canopy flowers, and the shelterbelts’ porosity. Conversely the amount of leaf litter appeared to reduce the abundance of a range of natural enemies. However the influence of these features on natural enemies needs to be considered within the context of a substantial influence of wind direction and deposition in the wake of a shelterbelt. This factor influenced the abundance of a range of natural enemies when shelterbelts were compared.

Subjects/Keywords: natural enemies; parasitoid; vineyard; non-crop vegetation; conservation biological control; windbreak; hedgerow

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

SMITH, I. (2014). The potential of shelterbelts to enhance the abundance of natural enemies of agricultural pest arthropods. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/43253

Chicago Manual of Style (16^th Edition):

SMITH, IAN. “The potential of shelterbelts to enhance the abundance of natural enemies of agricultural pest arthropods.” 2014. Doctoral Dissertation, University of Melbourne. Accessed January 26, 2021. http://hdl.handle.net/11343/43253.

MLA Handbook (7^th Edition):

SMITH, IAN. “The potential of shelterbelts to enhance the abundance of natural enemies of agricultural pest arthropods.” 2014. Web. 26 Jan 2021.

Vancouver:

SMITH I. The potential of shelterbelts to enhance the abundance of natural enemies of agricultural pest arthropods. [Internet] [Doctoral dissertation]. University of Melbourne; 2014. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/11343/43253.

Council of Science Editors:

SMITH I. The potential of shelterbelts to enhance the abundance of natural enemies of agricultural pest arthropods. [Doctoral Dissertation]. University of Melbourne; 2014. Available from: http://hdl.handle.net/11343/43253

University of Arizona

27. Stump, Simon Maccracken. Natural Enemies in a Variable World .

Degree: 2015, University of Arizona

URL: http://hdl.handle.net/10150/560856

► Natural enemies are ubiquitous in nature. In many communities, natural enemies have a major effect on the diversity of their prey. Their effects are very… (more)

▼ Natural enemies are ubiquitous in nature. In many communities, natural enemies have a major effect on the diversity of their prey. Their effects are very diverse: they can promote or undermine the ability of their prey to coexist through a variety of mechanisms. As such, an important step in understanding how diversity is maintained will be to understand how different forms of predator behavior affect prey coexistence. In this dissertation, I study how two major types of predators affect plant coexistence in two different communities. First, I study natural enemies in tropical forests, using both theory and empirical work. In tropical forests, most natural enemies are thought have a narrow host range, and be distance-responsive (i.e., mainly harm seeds and seedlings that are near adults of their main host). Previous theoretical work has shown that specialized natural enemies can maintain diversity of their prey, whether or not they are distance-responsive. However, it is unknown whether specialist natural enemies are more or less able to promote prey coexistence if they are distance-responsive. Using theoretical models, I show that distance-responsive predators are less able to maintain diversity. Additionally, I show that habitat partitioning does not interfere with the ability of distance-responsive predators to maintain diversity, even if it causes seedling survival to be highest near conspecific adults. From an empirical aspect, I studied the host range of seed-associated fungi. Soilborne microbes, such as fungi, are thought to play an important role in maintaining diversity in tropical forests. However, the microbial community itself is often treated as a black box, and little is known about which microbes are causing major effects, or how 8 specialized seed-microbe associations are. Here I use experimental inoculations to examine the host range and effect of a guild of seed-associated fungi that are thought to be mainly pathogens. I show that fungal species are differentially able to colonize different seed species, and have species-specific effects on seed germination. I show that in many cases, plant phylogeny, and to a lesser extent fungus phylogeny, are good predictors of colonization. Finally, I study how an optimally foraging granivore can promote (or undermine) coexistence amongst annual plants, using theory. Optimal foraging theory is one of the major theories for how predators behave; despite this, little is known about whether an optimally foraging predator could promote coexistence amongst a diverse community of prey. Previous models have shown than two species can coexist due to optimal foraging, but did not test whether multiple prey can coexist, nor if the effect is altered by environmental variation. Here, I show that if the predators specialize on different prey at different times, the predators can allow multiple prey species to coexist. In this case, environmental variation has little effect on the ability of predators to maintain diversity. If the predators are generalists, they cannot… Advisors/Committee Members: Chesson, Peter (advisor), Arnold, Anne Elizabeth (committeemember), Bronstein, Judith (committeemember), Watkins, Joseph (committeemember), Chesson, Peter (committeemember).

Subjects/Keywords: Ecological Modeling; Janzen-Connell Hypothesis; Natural Enemies; Optimal Foraging; Plants; Ecology & Evolutionary Biology; Coexistence

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APA (6^th Edition):

Stump, S. M. (2015). Natural Enemies in a Variable World . (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/560856

Chicago Manual of Style (16^th Edition):

Stump, Simon Maccracken. “Natural Enemies in a Variable World .” 2015. Doctoral Dissertation, University of Arizona. Accessed January 26, 2021. http://hdl.handle.net/10150/560856.

MLA Handbook (7^th Edition):

Stump, Simon Maccracken. “Natural Enemies in a Variable World .” 2015. Web. 26 Jan 2021.

Vancouver:

Stump SM. Natural Enemies in a Variable World . [Internet] [Doctoral dissertation]. University of Arizona; 2015. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10150/560856.

Council of Science Editors:

Stump SM. Natural Enemies in a Variable World . [Doctoral Dissertation]. University of Arizona; 2015. Available from: http://hdl.handle.net/10150/560856

University of Guelph

28. Muldoon, Dillon. ENHANCED BERM HABITATS INCREASES THE ABUNDANCE OF NATURAL ENEMIES OF INSECT PESTS AND POLLINATORS IN THE HOLLAND MARSH, ONTARIO.

Degree: MS, School of Environmental Sciences, 2020, University of Guelph

URL: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17975

► The Holland Marsh (HM), Ontario, is an agroecosystem with a primary focus on carrot and onion production. It contains negligible uncultivated habitat to support beneficial… (more)

Subjects/Keywords: Agriculture; Natural enemies; Pollinators; Restoration; Conservation biological control; Pollinator conservation; Ecosystem services; Holland Marsh

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APA (6^th Edition):

Muldoon, D. (2020). ENHANCED BERM HABITATS INCREASES THE ABUNDANCE OF NATURAL ENEMIES OF INSECT PESTS AND POLLINATORS IN THE HOLLAND MARSH, ONTARIO. (Masters Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17975

Chicago Manual of Style (16^th Edition):

Muldoon, Dillon. “ENHANCED BERM HABITATS INCREASES THE ABUNDANCE OF NATURAL ENEMIES OF INSECT PESTS AND POLLINATORS IN THE HOLLAND MARSH, ONTARIO.” 2020. Masters Thesis, University of Guelph. Accessed January 26, 2021. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17975.

MLA Handbook (7^th Edition):

Muldoon, Dillon. “ENHANCED BERM HABITATS INCREASES THE ABUNDANCE OF NATURAL ENEMIES OF INSECT PESTS AND POLLINATORS IN THE HOLLAND MARSH, ONTARIO.” 2020. Web. 26 Jan 2021.

Vancouver:

Muldoon D. ENHANCED BERM HABITATS INCREASES THE ABUNDANCE OF NATURAL ENEMIES OF INSECT PESTS AND POLLINATORS IN THE HOLLAND MARSH, ONTARIO. [Internet] [Masters thesis]. University of Guelph; 2020. [cited 2021 Jan 26]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17975.

Council of Science Editors:

Muldoon D. ENHANCED BERM HABITATS INCREASES THE ABUNDANCE OF NATURAL ENEMIES OF INSECT PESTS AND POLLINATORS IN THE HOLLAND MARSH, ONTARIO. [Masters Thesis]. University of Guelph; 2020. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/17975

University of Maryland

29. Kahl, Hanna Maria. USING A LIVING MULCH AND WOLF SPIDERS TO MANAGE PEST ARTHROPODS IN CUCUMBER.

Degree: Entomology, 2017, University of Maryland

URL: http://hdl.handle.net/1903/20394

► Pest management practices that conserve beneficial organisms and improve yield are needed. This research aims to determine how: 1) red clover living mulch impacts insect… (more)

Subjects/Keywords: Entomology; Agriculture; Ecology; associational resistance; cucumber beetle; living mulch; natural enemies; red clover; wolf spider

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Kahl, H. M. (2017). USING A LIVING MULCH AND WOLF SPIDERS TO MANAGE PEST ARTHROPODS IN CUCUMBER. (Thesis). University of Maryland. Retrieved from http://hdl.handle.net/1903/20394

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kahl, Hanna Maria. “USING A LIVING MULCH AND WOLF SPIDERS TO MANAGE PEST ARTHROPODS IN CUCUMBER.” 2017. Thesis, University of Maryland. Accessed January 26, 2021. http://hdl.handle.net/1903/20394.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kahl, Hanna Maria. “USING A LIVING MULCH AND WOLF SPIDERS TO MANAGE PEST ARTHROPODS IN CUCUMBER.” 2017. Web. 26 Jan 2021.

Vancouver:

Kahl HM. USING A LIVING MULCH AND WOLF SPIDERS TO MANAGE PEST ARTHROPODS IN CUCUMBER. [Internet] [Thesis]. University of Maryland; 2017. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/1903/20394.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kahl HM. USING A LIVING MULCH AND WOLF SPIDERS TO MANAGE PEST ARTHROPODS IN CUCUMBER. [Thesis]. University of Maryland; 2017. Available from: http://hdl.handle.net/1903/20394

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Georgia

30. Davies, Lindsay Nichole. Effects of cover crops and organic insecticides on squash bug (Anasa tristis) populations.

Degree: 2016, University of Georgia

URL: http://hdl.handle.net/10724/36068

► Squash bugs (Anasa tristis) can be a serious insect pest for organic summer squash growers. The purpose of this research was to evaluate two methods… (more)

Subjects/Keywords: Summer squash; Diversified planting; Natural enemies; Pesticides; Organic agriculture; Sustainable agriculture; Biological control

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Davies, L. N. (2016). Effects of cover crops and organic insecticides on squash bug (Anasa tristis) populations. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/36068

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Davies, Lindsay Nichole. “Effects of cover crops and organic insecticides on squash bug (Anasa tristis) populations.” 2016. Thesis, University of Georgia. Accessed January 26, 2021. http://hdl.handle.net/10724/36068.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Davies, Lindsay Nichole. “Effects of cover crops and organic insecticides on squash bug (Anasa tristis) populations.” 2016. Web. 26 Jan 2021.

Vancouver:

Davies LN. Effects of cover crops and organic insecticides on squash bug (Anasa tristis) populations. [Internet] [Thesis]. University of Georgia; 2016. [cited 2021 Jan 26]. Available from: http://hdl.handle.net/10724/36068.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Davies LN. Effects of cover crops and organic insecticides on squash bug (Anasa tristis) populations. [Thesis]. University of Georgia; 2016. Available from: http://hdl.handle.net/10724/36068

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations