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随着南方种草养畜业的兴起,粘虫(Mythimna separata Walker)对人工混播草地(多年生黑麦草十红三叶十白三叶)的为害日趋严重。几年来,贵州省龙里、水城、织金、独山等县垦植的大面积人工混播草地,均相继受到粘虫的严重威胁,有的近万亩黑麦草被吃光。1986年以来,我们对位于北纬25°34′,东经107°37′,海拔950～1017米的独山县墨寨乡500余亩,人工混播草地的粘虫的发生与防治情况进行了调查研究。
Mythimna separata Walker is becoming more and more damaging to the artificial mixed grassland (perennial ryegrass ten red clover ten white clover) with the rise of farming in the south. In recent years, large-scale artificial mixed grasslands cultivated in Longli, Watertown, Zhijin and Dushan counties in Guizhou Province have all been severely threatened by armyworm and some nearly 10,000 mu of ryegrass have been eaten. Since 1986, we conducted a survey on the occurrence and control of armyworms in more than 500 mu of artificial mixed grassland located in Mozhai Township, Dushan County, at an elevation of 25 ° 34 ’north latitude, 107 ° 37’ east longitude and 950 to 1017 meters above sea level. .