1979年我们在安徽省岳西县天堂地区发现巢沫蝉危害板栗,几年来经过饲养观察和野外调查,看到若虫刺吸嫩枝和球果汁液,成虫针刺嫩梢造成损伤,虫株率达90％,单株虫口密度百只至千只以上,且分布广泛,位于县内海拔200～700米的栗树均有发生,对板栗 In 1979, we found nest cicada endangered chestnut in paradise area of ​​Yuexi County, Anhui Province. After several years of observation and field investigation, we found that nymphs pierce the shoots and coniferous juice, and the adult shoots are damaged by acupuncture. The worm strain rate Up to 90%, single insect population density of more than one thousand to more than a thousand, and widely distributed, located in the county within 200 to 700 meters of chestnut trees have occurred, the chestnut