【摘要】 敌溴菊酯等七种杀虫剂的田间药效比较试验结果表明，敦煌棉区棉蚜对敌溴菊酯和氰久合剂二种混配剂较为敏感，田间防效１０～１５天均在９Ｏ％以上。久效磷、乙基硫环磷和灭多威可做为棉蚜防治中的轮换用药。更多还原

【Abstract】 Using seven insecticides including mixtures in labo-ratory toxicity test and field trials,the results showed that theaphis in Dunhuang district were more sensitive to the mixturesof trichlorfen and deltamethrin, fenvalerate and monoclotophsthan those of conventional organic phosphorous insecticides.The field control effect was over 90%at 10～15 days,monocrotophos , ethyl-cyolane and methomyl can be used tocontrol cotton aphids alternatively.更多还原