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草履蚧主要危害杨树、以若虫刺吸泡桐、苹果、桃树等树木的树干、嫩枝芽汁液。树木受害后,轻者发叶迟,展叶晚,树势削弱,重者发不出新芽,当年死亡。 一、发生规律 草履蚧属同翅目,绵蚧科,又名草鞋蚧壳虫。为杂食性害虫,每年发生一代,每年2月下旬或3月上旬初孵若虫出土上树,危害树木,5月中下旬老熟若虫下树,入土产卵越冬。
Carassius auratus main hazards poplar, with nymphs sucking Paulownia, apple, peach and other tree trunks, shoots bud juice. After the victims of trees, the light leaves late, leaves late, the tree potential weakened, severe cases can not be sprouted, then died. First, the occurrence of the lawn Grasshoppers belong to the Homoptera, Mian Kuwana, also known as grass scales insects. For omnivorous pests, a generation occurs each year, in late February or early March each year newly hatched nymphs unearthed trees, endanger trees, mid-late May mature tree nymphs, soil into the winter.