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烟草是烟草工业的重要原料,它还可用于配制土农药,消灭田间害虫。烟草中杀虫有效成分主要是烟碱。一般烟叶中烟碱含量比烟筋和烟茎要高。利用烟草灭虫具有安全、有效、经济等作用、原料易得、成本低廉,使用简易,效果独特,无污染,无残留,无公害,对天敌安全,害虫不会产生抗药性。 1.毒杀作用 烟草对害虫以触杀作用为主,兼具胃毒、熏蒸等
Tobacco is an important raw material for the tobacco industry. It can also be used for the preparation of soil pesticides and for the elimination of field pests. Tobacco insecticide active ingredient is mainly nicotine. The nicotine content in tobacco is generally higher than in tobacco and tobacco stems. The use of tobacco pest control is safe, effective and economical. The raw materials are easily available, the cost is low, the use is simple, the effect is unique, the pollution is non-polluting, the residue-free and pollution-free, and the pests do not have drug resistance. 1. Poisoning effect Tobacco to the role of pests mainly to touch, both stomach poisoning, fumigation and so on