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1. Σκούρας, Παναγιώτης. Μελέτη της βιο-οικολογίας, της γενετικής πληθυσμών και της ανθεκτικότητας σε εντομοκτόνα της αφίδας Myzus persicae και αρπακτικών της.

Degree: 2009, University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας

The aim of the present work was the study of the genetics and the biology of populations of the aphid Myzus persicae Sulzer, the resistance status to insecticides with emphasis on neonicotinoids and pyrethroids, as well as the recording, study of the biology and the resistance to insecticides of natural enemies of aphids. In the framework of this thesis, bioassays with the method of dip test and topical application were made in population samples of the M. persicae that derived from peach tree orchards and tobacco fields. Emphasis was given to the dip test method in imidacloprid, while other insecticides, acetamiprid, pirimicarb, methamidophos, bifenthrin, deltamethrin and chlorpyriphos methyl were also examined. Neonicotinoids and pyrethroids, were mainly study as it is known that the aphid has developed strong resistance to other classes of insecticides. The results showed the development of resistance of M. persicae to organophosphates, pyrethroids and carbamates. Low tolerance/resistance was found to aphid neonicotinoids as well as the natural enemies of aphids total. In the present study the developmental period of the immature stages of the predatory coccinellids H. variegata and H. undecimnotata and the larval aphid consumption were examined in five constant temperatures (17, 20, 23, 26, and 29 °C) and at 23 °C for C. septempunctata at L16:D8. A red M. persicae clone on tobacco leaves was used as prey. In addition, the demographic parameters of the three predators were examined at 23 °C. In H. variegata and H. undecimnotata the developmental temperature threshold was 12.5 °C and 12.7 οC respectively. The day-degree requirements for the preimaginal development were 211 and 257 in H. variegata and H. undecimnotata, respectively. The intrinsic rate of increase (rm, female/female/day), the mean generation time (T, days), the net reproductive rate (Ro female/female) and the population duplication time (DT, days) in H. variegata was 0,129, 42,4, 241,9 and 5,4 respectively, while the corresponding values in H. undecimnotata were 0,084, 59,1, 142,7 and 8,3 and finally for C. septempunctata they were 0,061, 69,3, 67,3 and 11,4. The total aphid consumption by a pair of adult male and female was 2,381 and 3,242 aphids in H. variegata and H. undecimnotata, respectively. Finally, we compared patterns of intraspecific polymorphism of two markers with contrasted modes of evolution, nuclear ribosomal DNA (rDNA) and mitochondrial DNA (mtDNA), in the aphid predator C. septempunctata. The first internal transcribed spacer (IT1S) of rDNA and a fragment in the mtDNA gene coding for 16sRNA, were PCR-amplified and sequenced in samples of various geographical origins distributed worldwide. IT1S or 16sRNA showed no phylogeographical structure.

Σκοπός της παρούσας εργασίας είναι η διερεύνηση της γενετικής και της βιολογίας πληθυσμών της αφίδας Myzus persicae Sulzer, της ανθεκτικότητάς της σε εντομοκτόνα, με έμφαση στα νεονικοτινοειδή και πυρεθροειδή, καθώς και στην καταγραφή, μελέτη της βιολογίας και της ανθεκτικότητας σε εντομοκτόνα…

Subjects/Keywords: Αφίδα; Ανθεκτικότητα; Ροδακινιά; Καπνός; Φυσικοί εχθροί; Βιολογική καταπολέμηση; Ολοκληρωμένη διαχείριση εχθρών; Myzus persicae; Insecticide resistance; Biological control; Natural enemies; Imitacloprid; C. septempunctata; Ache; Integrated pest management (IPM)

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

APA (6th Edition):

Σκούρας, . . (2009). Μελέτη της βιο-οικολογίας, της γενετικής πληθυσμών και της ανθεκτικότητας σε εντομοκτόνα της αφίδας Myzus persicae και αρπακτικών της. (Thesis). University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας. Retrieved from http://hdl.handle.net/10442/hedi/20509

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

Chicago Manual of Style (16th Edition):

Σκούρας, Παναγιώτης. “Μελέτη της βιο-οικολογίας, της γενετικής πληθυσμών και της ανθεκτικότητας σε εντομοκτόνα της αφίδας Myzus persicae και αρπακτικών της.” 2009. Thesis, University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας. Accessed October 15, 2019. http://hdl.handle.net/10442/hedi/20509.

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

MLA Handbook (7th Edition):

Σκούρας, Παναγιώτης. “Μελέτη της βιο-οικολογίας, της γενετικής πληθυσμών και της ανθεκτικότητας σε εντομοκτόνα της αφίδας Myzus persicae και αρπακτικών της.” 2009. Web. 15 Oct 2019.

Vancouver:

Σκούρας . Μελέτη της βιο-οικολογίας, της γενετικής πληθυσμών και της ανθεκτικότητας σε εντομοκτόνα της αφίδας Myzus persicae και αρπακτικών της. [Internet] [Thesis]. University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας; 2009. [cited 2019 Oct 15]. Available from: http://hdl.handle.net/10442/hedi/20509.

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

Council of Science Editors:

Σκούρας . Μελέτη της βιο-οικολογίας, της γενετικής πληθυσμών και της ανθεκτικότητας σε εντομοκτόνα της αφίδας Myzus persicae και αρπακτικών της. [Thesis]. University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας; 2009. Available from: http://hdl.handle.net/10442/hedi/20509

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

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