Development and implementation of a Reduced Risk Peach Arthropod Management Program in New Jersey.
We implemented a 2-year programme to reduce organophosphorus and carbamate insecticide use and mitigate their associated risks as they relate to peach production in New Jersey and elsewhere in USA. The main thrust integrated mating disruption with ground cover management practices to reduce oriental fruit moth, Grapholita molesta, and tarnished plant bug, Lygus lineolaris, abundance and damage. This Reduced Risk Peach Arthropod Management Program was compared with adjacent conventionally managed peach orchards. In 1999, we found 2.3 times fewer L. lineolaris and stink bugs (Euschistus servus, E. tristigmus, Acrosternum hilare) and 2.0 times less heteropteran damaged peaches in reduced-risk orchards when compared with conventionally managed orchards. In 2000, we observed 4.9 times fewer heteropteran insects in reduced-risk orchards but damage levels were not significantly different between the two programmes. In both years, G. molesta mating disruption gave at least 4 months of non-insecticidal control of this major pest. The reduced-risk programme provided a level of pest control that was equal to or better than conventional peach pest management programmes while using fewer organophosporus and carbamate insecticides.