油桐尺蠖属鳞翅目、尺蛾科的杂食性害虫,它主害油桐,兼害油茶、茶叶、杨梅、柑桔、楷杷、板栗、柿、松、杉等树种。因其幼虫爬行时呈拱曲状,故又名造桥虫、量尺虫。以幼虫食害叶片(剩下叶脉)为主,发生严重时可把整片树林叶子吃光,仅剩秃枝。受害树木光合作用受到极大影响,而秃枝树在夏秋长期高温干旱或冬季低温冰冻时极易枯死,是杨梅生产上一大害虫。该虫往年在我市杨梅上有区域性发生,但1992年在横河镇部分村突然大发生,1996年又继续复发。为此,作者对该虫进 Tung Chui is a genus of Lepidoptera, the moth family omnivorous pests, it is the main tung tree, and part of tea, tea, red bayberry, citrus, baguette, chestnut, persimmon, pine, fir and other tree species. Because of its caterpillars crawling arch shape, it is also known as bridge bugs, scale worms. To larvae eaten leaves (the remaining veins) mainly in the event of serious leaves can eat the whole piece of wood, leaving only bald branches. Affected trees photosynthesis is greatly affected, while the bald tree in the summer and autumn long-term high temperature and drought or cold frozen in winter is extremely easy to die, is a big insect on the production of bayberry. The insects in the city in previous years Yangmei regional occurrence, but in 1992 part of the village of Yokogawa suddenly occurred in 1996 and continued to relapse. To this end, the author of the insects