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1 April 2001 Integrated Control of Oriental Fruit Moth (Lepidoptera: Tortricidae) in Peach Orchards Using Insecticide and Mating Disruption
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Abstract

The efficacy of an integrated and a conventional oriental fruit moth, Grapholita molesta (Busck), control program was compared using 4-ha blocks of peach at three Niagara Peninsula farms during 1997–1999. In the integrated program, chlorpyrifos was used to control first-generation larvae and mating disruption using Isomate M100 pheromone dispensers was used to control the second and third generations. In the conventional program, chlorpyrifos was used to control first-generation larvae and pyrethroids were used to control larvae of the later generations. The average release rate of pheromone was 23.7–26.4 mg/ha/h over a period of 86–91 d. The pheromone treatment reduced the capture of moths in pheromone-baited traps on average by 98%, suggesting a high level of disruption. The integrated program provided control of oriental fruit moth similar to the control provided by a conventional program. The mean percentage of peach shoots infested with first- and second-generation larvae, and fruit infested with third-generation larvae was not significantly greater in the integrated-program blocks during the 3-yr study. The elimination of insecticide sprays from the integrated-program blocks did not result in an increase in damage caused by plant bugs. The incidence of damage caused by other pests was negligible in both the integrated and conventional blocks.

R. M. Trimble, D. J. Pree, and N. J. Carter "Integrated Control of Oriental Fruit Moth (Lepidoptera: Tortricidae) in Peach Orchards Using Insecticide and Mating Disruption," Journal of Economic Entomology 94(2), 476-485, (1 April 2001). https://doi.org/10.1603/0022-0493-94.2.476
Received: 1 June 2000; Accepted: 1 December 2000; Published: 1 April 2001
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