一、前言玉米螟是世界性害虫。在我国及本省玉米产区,均有分布。玉米受害一般减产10%左右,大发生时则更为严重。同时,还为害粟、高粱等,也造成一定产量损失。是我省玉米、粟、高粱等增产的重要障碍。过去国内外对玉米螟发生规律、生活习 I. Introduction Corn borer is a worldwide pest. In our country and the province corn production areas, are distributed. Damage to maize is generally reduced by about 10%, and when it occurs, it is even more serious. At the same time, but also for the millet, sorghum, also caused a certain loss of production. Is our province corn, millet, sorghum and other important obstacles to increase production. In the past at home and abroad on the occurrence of corn borer, life habits