前言草地螟 Loxostege Sticticalis L.为我国东北、华北及西北等地区甜菜生长中期主要害虫之一。以幼虫咬食甜菜及其它作物叶片,仅剩叶柄,使植株枯死。1980年以来连续发生,使甜菜及其它作物遭受相当大的损失。据1982年在安达县调查了甜菜、大豆等点 Introduction Loxostege Sticticalis L. is one of the major pests in the mid-stage of sugar beet growing in Northeast, North China and Northwest China. Biting beetles and other crop leaves with larvae, leaving only petiole, the plants died. Occurred consecutively since 1980, causing considerable losses in beets and other crops. According to a survey of beet and soybean in An Da County in 1982,