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辽、吉、黑和内蒙等地区玉米螟一年1—2代,以第一代为害,对玉米产量损失最大。因此,控制第一代十分重要。一般的作法均在玉米田内进行治螟(处理越冬寄主除外)。近年来玉米的播种面积增大,如一些地区玉米种植面积占40％以上,这样给在玉米田内施用颗粒剂等措施带来了许多困难,用药量及耗资均增大。可考虑利用玉米螟成虫白天基本不在玉米田,而躲藏在附近麦田和田边高大杂草丛中的习性,消灭成虫,是值得研究的治螟途径。
Corn borers in Liaoning, Jilin, Heihe, Inner Mongolia and other regions 1-2 generations a year, the first generation of damage, the largest loss of corn yield. Therefore, controlling the first generation is very important. The general practice of corn borer treatment in the borer (except for the overwintering host). In recent years, the sown area of maize has increased. For example, the corn acreage in some areas accounts for more than 40%. This has brought many difficulties such as the application of granules in the maize field, and the dosage and cost have increased. May consider the use of corn borer adult during the day is basically not in the corn field, and hiding in the vicinity of wheat fields and high weeds in the habitat, eliminate adults, is worthy of study pathways.