烟青虫是危害烟草的主要害虫之一,在全国各地烟区均有发生。它不仅取食烟芽、嫩叶,影响烟叶产量降低烟叶品质,还在烟草生长后期取食蒴果和种子,严重影响了种子的产量和质量。长期以来防治烟青虫一直采用敌百虫等有机磷农药。为避免烟青虫产生抗药性,应不断筛选高效、低毒低残留的农药。速灭菊酯又名速灭杀丁,为拟除虫菊酯类农药。它通过胃毒、触杀将害虫致死。具有击倒快、残效期长的特点。在棉花、蔬菜、柑桔、苹果、茶树等作物上已得到应用。1985年我们 Tobacco caterpillar is one of the major pests that endanger tobacco in the tobacco area all over the country. It not only takes tobacco buds and young leaves, but also affects tobacco leaf yield and tobacco leaf quality. It also feeds on capsules and seeds at the late stage of tobacco growth and seriously affects seed yield and quality. Long-term control of tobacco budworm has been using trichlorfon and other organophosphate pesticides. In order to avoid the resistance of tobacco budworm, the pesticide should be continuously screened with high efficiency, low toxicity and low residue. Chrysanthemum also known as speed kill K, for pyrethroid pesticides. It is through gastric poisoning, contact kill the pests. With knockdown fast, long residual period characteristics. In cotton, vegetables, oranges, apples, tea and other crops have been applied. 1985 us