玉米螟又名钻心虫,它属鳞翅目螟蛾科,是玉米生产上一种常见、多发、灾害性害虫。在雨水来得早,湿度偏高的情况下,对玉米螟的生长和繁殖提供了良好的环境条件,往往会造成玉米螟的严重危害,影响玉米的产量和品质。危害特点玉米螟在南方每年发生3-4代,越冬代成虫在5月下旬至6月上旬羽化,每头雌虫平均产卵500多粒。玉 Corn borer, also known as borer, which belongs to Lepidoptera Pyralidae, corn is a common, multiple, catastrophic pests. Early in the rain, high humidity conditions, the corn borer growth and reproduction provides a good environmental conditions, often will cause serious damage to corn borer, corn yield and quality. Hazard characteristics Corn borer occurs 3-4 generations a year in the south. Overwintering generation adults emerge from late May to early June, with an average of 500 eggs per female. jade