【摘要】 尼氏钝绥螨是贵州果园捕食螨重要优势种,饲喂油茶和迎春花花粉能正常发育和繁殖,饲喂野菊花粉只能延长幼满寿命2～3天。其不取食植物叶表附生真菌枝包霉菌和盘多毛孢菌。25℃下各虫态平均历期分别为:卵2天,幼螨2.5天,前若螨1.1天,后若螨0.6天,成螨19.2天。成螨1天后便可产卵,完成一个世代约需一周。主要以成螨越冬。更多还原

【Abstract】 Amblyseius nicholsi is a dominantv species,predator of spider mites in the orchard in Guizhou. Feeding with the pollen of Camellia oleifera and Jsmianm audiflorum, A. nicholsi can develop and reproduct normally,not do so but larva spancan be extended about 2-3 days with the pollen of Chrysanthemum SP. It dont feed on the fungi, Cladosporium sp. and Pestalotia sp., which live on the leave surface of plant. The duration of the life cycle,at 25℃, is approxi mate one week which include the egg stage of 2 days larva 2.5 days, Protonymph 1.1 days, deutonymph 0.6 day, preoviposition period 1 day in adult which average life span is 19.2 days. The adults.and may be nymphs. pass over the winter.更多还原