Oriental fruit moth (OFM) is a serious pest of apples in North Carolina. Over the past two years, OFM mating disruption has been successfully implemented in NC apple IPM programs. However, low levels of late-season fruit damage has occurred in some orchards treated in late May with Isomate M100 pheromone dispensers, because the life of dispensers is approximately 80 days. Trials were conducted in 2002 to compare the efficacy of conventional application of Isomate M100 in late May with delayed application in late June (just before emergence of third generation OFM moths) that was supplemented with an application of 3M sprayable pheromone, and Isomate Rosso dispensers, which have longer residual activity of approximately 150 days. Additionally, large plot experiments were used to evaluate the efficacy of 3M sprayable pheromone applied at a rate of 2.5 g ai/acre at 2-week intervals compared with monthly applications of 5 and 10 g ai/acre.
Species 1: Lepidoptera Tortricidae Grapholita molesta (Oriental fruit moth)
Keywords: mating disruption
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