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桑白蚧壳虫主要危害桃树枝干,也危害李、杏等核果类果树,此虫主要以若虫和雌成虫在枝干上吸食树体养分,使整树死亡。一、抓好越冬代的防治。此虫在抚宁县一年发生2代,以受精雌成虫在枝条上越冬,第二年桃树萌动后,越冬雌成虫开始吸食汁液危害树体,因此要在冬季或早春桃树萌动前,人工刮除枝条上的越冬虫体,然后连同枯枝落叶一道集中烧毁或深埋,以消灭越冬成虫;桃树萌动后至发芽前这一段时间,喷5度的石硫合剂以消灭一部分越冬成虫。在萌芽前喷蜡蚧灵100倍液防治效果也较好。
Morus alba insects main pests damage peach stems, but also endangering Lee, apricot and other stone fruit trees, the insects mainly to nymphs and female adults in the trunk of the tree to take nutrients, so that the whole tree died. First, do a good job in the winter control. The insects occurred in Funing County, two generations a year to female adults fertilized wintering branches, the second year after the peach sprout, overwintering female adults began to drink juice harm trees, so in winter or early spring before the peach sprout, the artificial Scratch the branches of the overwintering body, and then together with litter concentrated in a burned or buried in order to eliminate overwintering adult peach sprout until germination period of time before, spray 5 degrees of lime sulfur mixture to eliminate some of the overwintering adult. Spraying wax before spraying spatula 100 times the prevention and control effect is better.