Efficacy and Release Rate of Reservoir Pheromone Dispensers for Simultaneous Mating Disruption of Codling Moth and Oriental Fruit Moth (Lepidoptera: Tortricidae)
2009
ABSTRACT Five formulations of controlled release, polyethylene tube dispensers of pheromone were evaluated during three field seasons for disruption of codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), and the oriental fruit moth, Grapholita molesta (Busck) (Lepidoptera: Tortricidae). Evaluations were conducted in replicated 4-ha plots of commercial apple in Michigan. Disruption of both C. pomonella and G. molesta male orientation to pheromone traps in plots treated with a dual-species formulation (Isomate CM/OFM TT), simultaneously releasing the pheromone components of both C. pomonella and G. molesta, was equivalent to that obtained by treating plots with separate formulations for each species (Isomate C Plus or Isomate C TT for C. pomonella and Isomate M Rosso for G. molesta) through mid-season. However, disruption efficacy of the dual-species formulation was significantly lower near the end of the season for G. molesta compared with the Isomate M Rosso formulation because of depletion of ...
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