详述了二斑叶螨在砀山地区的发生情况及生活习性 ,指出干旱少雨的气候条件、抗药性增强、天敌少及寄主种类多是大量发生的原因。指出采用人工防治和化学防治相结合方法 ,抓住越冬雌成螨出蜇盛期和麦收前两个关键时期即可基本控制其发生发展 The occurrence and living habits of Tetranychus urticae in Ganshan area were described in detail. It was pointed out that the climatic conditions of aridity and lack of drought, enhanced resistance, fewer natural enemies and host species were the reasons for the large occurrence. It is pointed out that the combination of artificial control and chemical control can seize the development and control of wintering female adult mites in the two critical periods