大青叶蝉、又名青叶跳蝉,大绿浮尘等。此虫主要寄生于苹果、梨、桃、葡萄等果树。以成虫、若虫刺吸寄主植物的枝、梢、茎、叶。以成虫在果树上产卵为害。成虫于秋末将卵产在幼树枝干的皮层内,产卵前先用产卵管割开寄主的表皮,外观呈月牙形,产卵7～8粒,排弄整齐。由于成虫在枝干上群集活动,产卵密度较大,待至春季若虫孵化后,造成被害枝条遍体鳞伤,再经冬春寒冷,干旱或大风,使幼树大量失水,导致枝干枯死、严重时可全株死亡。调查中发现与菜地邻近的果园易受害。因此,大青叶蝉是果树苗木和定 Green leafhopper, also known as green leafhopper, large green dust and so on. This insect is mainly parasitic on apples, pears, peaches, grapes and other fruit trees. To adults, nymphs thorn host plant shoots, shoots, stems, leaves. Adult adults in the fruit tree spawning damage. Adult in the fall of the eggs will be born in young cortex dry cortex, before oviposition of the host with the ovipositor cut the epidermis, the appearance of crescent-shaped, spawning 7 to 8, row neat. Due to adult activity on the trunk of the cluster activity, spawning density, until nymphs hatch in spring, causing the branches hurt all over the black and blue, then cold winter, spring or windy, so that a large number of young trees water loss, leading to dry branches, severe Whole plant died. During the investigation, the orchards adjacent to the vegetable fields were found to be vulnerable. Therefore, the green leafhopper is a fruit tree seedlings and set