粘虫对我省小麦的为害历年十分严重,常年发生面积占小麦种植面积的四分之一到三分之一。为害严重年份常将小麦叶片吃光,穗茎咬断,造成小麦品质和产量下降。在防治上多年来都是沿用六六六与滴滴涕粉剂喷洒,造成农业环境污染,杀伤天敌,破坏生态平衡,危害人和畜、禽健康。为了有效地控制粘虫的危害,应用毒性较低、杀虫效果较高的六种拟除虫菊酯类农药,对三龄期粘虫幼虫进行田间喷雾防治试 The damage caused by armyworm to wheat in our province has been very serious over the years and the perennial area accounts for one quarter to one third of the area planted with wheat. Harmful years often eaten wheat leaves, spike stem snapped, resulting in decreased quality and yield of wheat. Over the years, prevention and control have been followed by the use of BHC and DDT powder to spray pesticides. This has resulted in agricultural environmental pollution, natural enemies, damage to ecological balance, endangering human and livestock animals and birds. In order to control the harmfulness of armyworm effectively, six kinds of pyrethroid pesticides with lower toxicity and higher insecticidal effect were applied to prevent and cure the third instar armyworm larvae