An experiment was conducted in the Cumberland and Appomattox-Buckingham State Forests, Virginia to evaluate the effects of various doses of synthetic pheromone (racemic disparlure) on mating disruption of the gypsy moth, Lymantria dispar (L.). The pheromone was applied aerially. The range of doses, 0.15 to 75g a.i./ha, was chosen so that the lowest had almost no effect on tested population and the highest significantly disrupted mating. Mating disruption was evaluated using laboratory-reared tethered virgin females and release-recapture method with USDA milk-carton traps baited with (+) disparlure. As a result of this study, the dose-response relationship between the dose of pheromone and females mating success, and male moth catches in pheromone traps was obtained for a wider range of pheromone doses.
Species 1: Lepidoptera Lymantriidae Lymantria dispar (gypsy moth)
Keywords: disparlure
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