玉米螟又称玉米钻心虫,属鳞翅目螟蛾科,是世界性害虫,主要为害玉米、高粱、谷子,也可以为害小麦、水稻、向日葵、甜菜、马铃薯、茄子等多种作物。幼虫为害玉米,可食害叶肉成“窗眼”状花斑或造成排孔,为害雄穗、雌穗,并钻蛀茎秆及果穗柄,影响养分输送,或直接食害籽粒。被害植物易风折,而且茎秆被害后抗拉强度降低,影响机械收获。近年,由于虫 Corn borer, also known as corn borer, is a Lepidoptera Pyralidae, is a worldwide pest, mainly harmful to corn, sorghum, millet, but also can be harmful to wheat, rice, sunflower, sugar beet, potato, eggplant and other crops. Larvae damage to corn, edible leaf damage into the “window” shaped plaque or cause row holes, damage to the tassel, ear, and drill moth stalks and ear handle, affect nutrient delivery, or direct consumption of grain. Victims of easy wind folding, and stalk after the tensile strength decreased, affecting the mechanical harvest. In recent years, due to insects