Control of Grape Berry Moth (Lepidoptera: Tortricidae) in Relation to Oviposition Phenology

摘要: We monitored the phenology of oviposition by grape berry moth, Paralobesia viteana (Clemens) (Lepidoptera: Tortricidae), in (Vitis spp.) vineyards, to determine optimal timing for control this pest. Egg deposition was throughout growing season visually inspecting clusters twice weekly and counting number eggs. Male moths were captured on pheromone-baited traps during same period. Two main periods egg detected all farms years: first period June-July second August. These episodes concentrated separated a brief low intensity but continuous oviposition. The proportion eggs laid peak ranged from 9 35% monitoring at each site, whereas 43 78% laid. From 49 99% male before or In field trials with varying application methoxyfenozide targeting postbloom oviposition, single selective insecticide ≈700 degree-days, ≈12% cumulative season-long provided significant moth comparable two applications three-spray program broad-spectrum insecticides. Use predicted insecticides long residual activity can improve protection grapes against infestation P. viteana.