草地螟分布范围广,在欧洲、亚洲、北美洲的草原及接近草原的南部严重发生。我国主要分布在东北、华北和内蒙地区。草地螟为暴食性和多食性害虫,当食物缺乏时成群迁移,爬墙过沟损害农田和牧场。草地螟按自然分布和年限有重大变化,并随着地带和季节的变化有很大差异,发育期有延续1—4代的特性。在内蒙地区一年发生二 Grasshopper borer is widely distributed and occurs seriously in the grasslands of Europe, Asia and North America and in the south of the grasslands. My country is mainly distributed in northeast, north China and Inner Mongolia. Meadow borers are binge eating and multi-food pests, migrating in groups when food is scarce, and crossing ditches to damage farmland and rangelands. Meadow borer according to the natural distribution and age have significant changes, and with the changes in the zone and the seasons are very different, the development of a continuation of 1-4 generations of characteristics. Occur in Inner Mongolia a year