甜菜夜蛾是一种食叶性害虫。主要危害禾谷类作物、甜菜、棉花、烟草、花生等，近两年在黄淮海宁原对蔬菜危害严重，特别是对大葱田危害十分严重，轻者造成天窗、孔洞、缺刻，重者将叶片吃光。尤其是7～9月高温天气，常暴发成灾，而且还有一定的抗药性，常规防治十分困难，已成 Beet armyworm is a leaf-eating pest. The main hazards of cereal crops, sugar beet, cotton, tobacco, peanuts, Haining the Hailuai Haining the past two years, the serious endangering of vegetables, especially on the dangers of the scallion field is very serious, light caused by skylights, holes, nicks, Eat light. Especially from July to September hot weather, often outbreaks, but also some resistance, conventional control is very difficult, has become