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为害果树比较严重的蝉类害虫主要有黑蚱蝉、大青叶蝉、桃一点叶蝉。一、为害特点1.黑蚱蝉若虫生活于土中,刺吸寄主根部汁液,成虫刺吸植物枝条汁液,影响树势。尤以成虫喜好在1年生枝条中产卵,其产卵瓣刺破枝条皮层与木质部,造成产卵部位以上枝梢失水枯死,严重影响苗木生长。该虫
Cicada insect pests are more serious fruit trees are black grasshopper, green leafhopper, peach leafhopper. First, the characteristics of harm 1 Cordyceps cicada nymphs living in the soil, thorn sucking the root of the juice, adult plants sucking the branches of thorns juice, affecting the tree potential. In particular, adults like to spawn in 1-year-old branches, the oviposition flap pierce the branches of the cortex and xylem, resulting in the spawn above the spawn branches dehydration and death, seriously affecting the growth of seedlings. The bug