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草履蚧,俗称吸浆虫,为害杨、柳等林木及苹果、梨、桃等果树,以刺吸式口器吸食嫩枝和芽叶的汁液,造成树势衰弱,严重时可使寄主整株死亡。该虫一年发生一代,以卵在寄主附近的土缝里、石块下、草丛中越冬,1月中下旬开始孵化,盛期在2月,3月初孵化结束。孵化后陆续上树,聚集在芽旁叮吸汁液,并在树上逐渐分泌蜡质。雄虫于4月中旬至5月下旬向下转移,潜藏于树干翘皮下及附近的土缝石块下、杂草落叶中化蛹,4月下旬至6月上旬羽化后,飞至树上与雌虫交配,交配后雄虫死亡。雌虫于5月上
Grasshoppers, commonly known as midge, damage to the trees such as poplar and willow and fruit trees such as apples, pears, peaches and the like, inhale the juice of young shoots and shoots with sucking mouthparts, resulting in the weakening of the tree shrubs and the death of the host plants in severe cases. The pest occurs a generation a year, eggs in the soil near the host seam, under the stones, grass winter, hatch in mid-late January, peak in February, early March hatch. After hatching one after another on the tree, gathered in the bud next to suck juice, and the gradual secretion of wax in the tree. Male mid-April to late May transfer down, lurking in the trunk under the bark and near the soil seam stones, weeds deciduous pupae, from late April to early June after emergence, fly to the tree and Female mating, mate death after mating. Female on May