玉米是辽宁、吉林2省的主要作物,种植面积分别占粮食播种面积的32％和57％以上。由于玉米螟的危害每年减产10％—15％。1981年吉林省因玉米螟危害损失玉米7亿公斤。多年来此2省植保站把防治玉米螟列为植保工作的重点,成绩显著。为减轻劳动强度,减少环境污染保障人畜安全, Corn is the main crop in two provinces of Liaoning and Jilin. The acreage accounts for 32% and 57% of the sown area respectively. Due to the damage of corn borer 10% -15% annual reduction. Jilin Province in 1981 due to corn borer damage corn 700 million kilograms. Over the years, the plant protection station in these two provinces put the prevention and control of corn borer as the focus of plant protection work with remarkable achievements. In order to reduce labor intensity and reduce environmental pollution to ensure the safety of people and livestock,