自2005年以来,受气候、生态环境、作物种植结构等多种因素影响,阿勒泰地区草地螟发生范围不断扩大、危害逐年加重,而且在当地可以安全越冬。特别是2012年,阿勒泰地区六县一市及农牧团场的农田不同程度地发生面积达280万亩,为害盛期田间最高虫量超过3000头/m2,为历年罕见。草地螟在阿勒泰地区一年发生1～2代,发生2代的田块以老熟幼虫在土内吐丝作茧越冬。由于草地螟大部分 Since 2005, due to various factors such as climate, ecological environment and crop planting structure, the occurrence range of Meadow Borer in Altay Region has been expanding continuously, the harm is increasing year by year, and the winter can be safely safeguarded locally. In particular, in 2012, farmland in six counties and one municipality and farming and pastoral farms in Altay Prefecture occurred in varying degrees and reached an area of ​​2.8 million mu. The highest amount of insect pests reached more than 3,000 heads / m2 in the field during the peak period of damage, which was rare in previous years. Meadow borer in the Altay area occurs 1 to 2 generations a year, occurred two generations of plots of mature larvae in the soil for silkworm cocoon winter. Due to most of the grass borers