Abstract
Abstract We conducted timed visual observations of the peach canopy to monitor beneficial fauna diversity and abundance in orchards with reduced risk and conventional arthropod management programs. In addition, we placed sentinel Grapholita molesta (Busck) (Lepidoptera: Tortricidae) eggs in the peach canopy and determined egg parasitism, predation, and the total impact of natural enemies. Reduced risk orchards used minimal insecticide, G. molesta mating disruption, and managed sod ground cover to suppress Lygus lineolaris (Palisot de Beauvois) (Heteroptera: Miridae). Conventional orchards used organophosphorus and carbamate insecticides to control G. molesta, L. lineolaris, and other pests. Chrysoperla rufilabris (Burmeister) and C. plorabunda (Fitch) (Neuroptera: Chrysopidae), Coccinella septempunctata L. and Harmonia axyridis (Pallas) (Coleoptera: Coccinellidae), Orius insidiosus (Say) (Heteroptera: Anthocoridae), and Trichogramma minutum Riley (Hymenoptera: Trichogrammatidae) were the most frequently o...
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