蚱蝉又叫蝉、知了,危害植物的种类多达几十种,如樱花、紫荆、玉兰、垂柳、桂花、蜡梅、悬铃木及桃李科植物等。危害范围遍及全国各地。危害症状最直观明显的,是雌成虫在新梢上产卵,造成产卵区上部枝条全部枯死。严重时每株树上枯死枝条多达20～50 Grasshoppers also known as cicada, known, endangering the species of plants up to dozens of species, such as cherry, Bauhinia, Magnolia, weeping willow, sweet-scented osmanthus, Chimonanthus, Platanus and Taoyuan families. Hazard throughout all parts of the country. The most obvious harm to the symptoms, is the female adults spawning in the shoots, spawning area resulting in all the upper branches dead. In severe cases, each tree withered branches up to 20 ~ 50