玉米螟是《全国农业发展纲要》列为消灭的大害虫之一。近年来,玉米螟为害谷子在我盟部分地区有逐年加重的趋势。据察右前旗呼和乌素大队1973年调查,谷子被害株率(主要是玉米螟混有少量粟灰螟)已由5%增加到37%,值得引起警惕。1972～1973年,我们在大青山前山地区东部丰镇、卓资、察右前旗、兴 Corn borer is one of the major pests eliminated as “National Agricultural Development Program”. In recent years, corn borer damage in some parts of my Union has increased year by year trend. It is reported that the right before the flag huh and Wusu brigade in 1973 survey, millet plant strain rate (mainly corn borer mixed with a small amount of millet borer) has risen from 5% to 37%, it is worth arousing vigilance. From 1972 to 1973, we found Fengzhen, Zhuozi and Chayouqianqi in the eastern part of Daqingshanqian Mountain area