近几年来,茶树害螨的危害日趋严重,导致茶叶减产、质量下降,甚至失收。茶树害螨、茶毛虫、茶小绿叶蝉对常规的有机磷农药(敌敌畏、乐果、氧化乐果、辛硫磷等)产生了很强的抗性。继续施用有机磷农药对付茶树害虫,不仅防效甚微,而且还间接地“刺激”了害虫的繁殖,出现近年来害螨危害逐年上升的恶果。从另一方 In recent years, the harm of tea tree pest mites has become increasingly serious, leading to the loss of tea, the decline in quality, or even loss. Tea tree pest mites, tea caterpillars, green leafhoppers on the conventional organophosphorus pesticides (dichlorvos, dimethoate, omethoate, phoxim, etc.) had a strong resistance. Continued use of organophosphorus pesticides to deal with tea tree pests, not only with little effect, but also indirectly “stimulated” the propagation of pests, the pest damage appears in recent years, the consequences of increasing year by year. From the other side