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近几年，棉铃虫在我区严重发生，严重危害着棉花生产。哈密棉铃虫防治多采用菊酯类药剂进行防治，不但对天敌杀伤力较强，而且还产生了抗药性。为了控制此虫在我区的发生为害，２０００年我们引进了农得利悬浮剂生物农药。在哈密市城郊乡西郊农场进行了棉铃虫田间防治试验，现
In recent years, the cotton bollworm occurred seriously in our district, seriously endangering the cotton production. Hami bollworm prevention and treatment use of pyrethroid agents for prevention and treatment, not only strong on the natural enemy lethality, but also produced resistance. In order to control this pest in my area of ?? damage, in 2000 we introduced the agricultural benefit Suspending agent biological pesticides. In the suburbs of Hami suburbs of rural western farm cotton bollworm field trials, now