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Environ Entomol

Title:		Evaluating dispensers loaded with codlemone and pear ester for disruption of codling moth (Lepidoptera: Tortricidae)
Author(s):		Knight A; Light D; Chebny V;
Address:		"Yakima Agricultural Research Laboratory, Agricultural Research Service, USDA, Wapato, WA 98951, USA. alan.knight@ars.usda.gov"
Journal Title:		Environ Entomol
Year:		2012
Volume:		41
Issue:		2
Page Number:		399 - 406
DOI:		10.1603/EN11309
ISSN/ISBN:		1938-2936 (Electronic) 0046-225X (Linking)
Abstract:		"Polyvinyl chloride polymer (PVC) dispensers loaded with ethyl (E,Z)-2,4-decadienoate (pear ester) plus the sex pheromone, (E,E)-8,10-dodecadien-1-ol (codlemone) of codling moth, Cydia pomonella (L.), were compared with PVC dispensers and a commercial dispenser (Isomate-C Plus) loaded with codlemone. Evaluations were conducted in replicated plots (0.1-0.2 ha) in apple, Malus domestica (Borkhausen) during both generations of codling moth from 2007 to 2009. Dispensers were applied at 1,000 ha(-1). Male captures in traps baited with virgin female moths and codlemone lures were recorded. Residual analysis of field-aged dispensers over both moth generations was conducted. Dispensers exhibited linear declines in release rates of both attractants, and pear ester was released at a significantly higher rate than codlemone during both time periods. The proportion of virgin female-baited traps catching males was significantly lower with combo dispenser TRE24 (45/110, mg codlemone/mg pear ester) during the second generation in 2007 and the combo dispensers TRE144 (45/75) and TRE145 (75/45) during the first generation in 2008 compared with Isomate-C Plus. Similarly, male catches in female-baited traps in plots treated with the combo dispensers TRE144 during the first generation in 2008 and TRE23 (75/110) during the second generation, in 2007 were significantly lower than in plots treated with Isomate-C Plus. No significant differences were found for male catches in codlemone-baited traps in plots treated with Isomate-C Plus and any of the combo dispensers. However, male catches were significantly lower in plots treated with Cidetrak CM (codlemone-only dispenser) than the combo TRE144 dispenser during both generations in 2009"
Keywords:		Animals *Decanoates Dodecanol/*analogs & derivatives Female Insect Control/*instrumentation Male Malus *Moths Time Factors;
Notes:		"MedlineKnight, Alan Light, Douglas Chebny, Vincent eng Evaluation Study England 2012/04/18 Environ Entomol. 2012 Apr; 41(2):399-406. doi: 10.1603/EN11309"