青叶蝉(Cicadeua viridis L.)亦称青叶跳蝉,是干旱草原地区杨树的重要害虫。近年在东北西部地区猖獗发生,已造成严重灾害。1973年辽宁省新民机械林场营造的4,600亩小叶杨,有1,200亩受害成灾,其中有900亩全部死亡;又如黑龙江省明水县1976年以来营造的小×美等杨树,1978年遭到青叶蝉的严重为害,有一万多亩归于毁灭。今就青叶蝉的形态特征,发生经过及防治方法等简单整理如下,以供生产单位和科学实验的参考。分布及寄主植物宁夏、新疆、甘肃、山西、内蒙古、华北、长江流域、台湾等,几乎全国各地都有分布。国外的苏联(西伯利亚)和欧洲、日本及朝鲜都有发生。食性较广,寄主植物有 Leafhopper (Cicadeua viridis L.), also known as leafhopper, is an important pest of poplar in the arid grassland. In recent years, rampant in the western region of northeast China has caused serious disasters. In 1949, 4,600 mu of Populus simonii planted in Xinmin Machinery Forest Farm in Liaoning Province caused 1,200 mu of disaster and all 900 mu of them died. Another example is the poplar trees in Xiaomei and Midea since 1978 in Mingshui County, Heilongjiang Province. In 1978, Serious damage to the leafhopper, more than 10,000 mu attributed to destruction. Now on the morphological characteristics of leafhoppers, occurred after the prevention and treatment methods are as follows, for the production unit and scientific experiments for reference. Distribution and host plants Ningxia, Xinjiang, Gansu, Shanxi, Inner Mongolia, North China, the Yangtze River valley, Taiwan, almost all over the country are distributed. Foreign countries such as the Soviet Union (Siberia) and Europe, Japan and North Korea have occurred. Broad diet, host plants have