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内蒙古河套地区山楂叶螨以受精雌成螨在树干、主枝翘皮下及根茎附近的缝隙内越冬。越冬雌成螨出蛰高峰在4 月下旬苹果梨花芽开绽期,出蛰时间长达1 个月。一代卵高峰期在5 月中、下旬,一代若螨发生盛期在5月下旬。从雌成螨数量消长来看,在苹果梨上全年有4 次危害高峰,相应物候期为开花—座果期、新梢生长高峰期、花芽分化期和果实生长后期。
Inner Mongolia Hetao hawthorn spider mites to fertilized female adult mites in the trunk, the main branches of the skin and rhizome near the cracks in the winter. Overwintering female adult mites out of sting peak Apple pear flower buds in late April, the sting time of up to 1 month. The peak of a generation of eggs in mid-May, late, generation if the peak occurrence of mites in late May. Judging from the decline in the number of adult mites, there were 4 peaked pests on apple pears throughout the year. The corresponding phenophases were flowering - sessile stage, shoot growth stage, flower bud differentiation stage and fruit growth stage.