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« Previous AbstractAdjusting the phenology model of codling moth (lepidoptera: tortricidae) in Washington State apple orchards    Next AbstractInfluence of within-orchard trap placement on catch of codling moth (Lepidoptera: Tortricidae) in sex pheromone-treated orchards »

Pest Manag Sci


Title:"Disruption of mating in codling moth (Lepidoptera: Tortricidae) by chlorantranilipole, an anthranilic diamide insecticide"
Author(s):Knight AL; Flexner L;
Address:"Yakima Agricultural Research Laboratory, Agricultural Research Service, USDA, 5230 Konnowac Pass Rd, Wapato, WA 98951, USA. aknight@yarl.ars.usda.gov"
Journal Title:Pest Manag Sci
Year:2007
Volume:63
Issue:2
Page Number:180 - 189
DOI: 10.1002/ps.1318
ISSN/ISBN:1526-498X (Print) 1526-498X (Linking)
Abstract:"The influence of the anthranilic diamide insecticide chlorantranilipole (DPX-E2Y45; Rynaxypyr against the adult stage of codling moth, Cydia pomonella L., was examined. Insecticide residues in plastic cups sprayed with 56 mg AI L(-1) (equivalent to the recommended field rate) had a minimal effect on adult survival or fecundity, but significantly fewer female moths were mated in treated than in untreated cups. Similar results were found in field studies with adults placed in screened cages on treated apple foliage for up to 3 weeks. Mating was disrupted when either sex was topically dosed with technical material (0.01-0.1 microg). Males were more sensitive to the disruptive effects of chlorantranilipole than females. A 2 h exposure significantly reduced male activity (walking and wing fanning), but not female calling. A 25 h exposure significantly reduced the activity of both sexes. The proportion of males landing near a sex pheromone source in a flight tunnel was significantly reduced following exposures of 2-4 h and completely eliminated following a 17 h exposure. Male moths partially recovered from either topical or residual exposure to chlorantranilipole, but the extent of their recovery was dose and time dependent. Male response to sex pheromone recovered within 2 h following a 4 h exposure, but following a 17 h exposure only a partial recovery occurred after 48 h. Mating by moth pairs exposed to chlorantranilipole residues for 24 h did not significantly increase during recovery periods of 24-96 h, except in cups treated with 10% of the standard concentration. The proportion of field-collected female codling moths caught in pear ester-baited traps that were mated was significantly lower in apple orchards treated season-long with chlorantranilipole compared with females caught in either untreated orchards or those treated with sex pheromones to cause mating disruption"
Keywords:"Animals Dose-Response Relationship, Drug Female Insect Control/*methods Insecticides/*pharmacology Male Moths/*drug effects/physiology Reproduction/*drug effects/physiology Sex Factors Sexual Behavior, Animal/drug effects Time Factors ortho-Aminobenzoates;"
Notes:"MedlineKnight, Alan L Flexner, Lindsey eng England 2006/11/28 Pest Manag Sci. 2007 Feb; 63(2):180-9. doi: 10.1002/ps.1318"

 
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