蔬菜一般是生育期较短的食用作物,种植两三个月即可收获,而有的蔬菜在整个生育期都可食用,像小白菜、香菜、菠菜、生菜、葱等。因此,在蔬菜上施用的农药要求十分严格,高毒农药3911、1059、1605、呋喃丹、甲胺磷等,高残留农药666、滴滴涕、氯丹等,都不能在蔬菜上施用。蔬菜生产上应当施用高效低毒、残效期短、残留量低的农药,这类农药有敌百虫、敌敌畏、乐果、菊酯类等。但是在这些农药的安全间 Vegetables are generally short-lived edible crops, planting two or three months to harvest, and some vegetables are edible throughout the growing period, such as cabbage, parsley, spinach, lettuce, green onions. Therefore, the pesticides applied on vegetables are very strict. Highly toxic pesticides 3911, 1059, 1605, carbofuran, methamidophos and the like, high-residue pesticides 666, DDT, chlordane and the like can not be applied to vegetables. Vegetable production should be applied with high efficiency and low toxicity, short residual period, low residual pesticides, such pesticides trichlorfon, dichlorvos, dimethoate, pyrethrum and so on. But in the safety of these pesticides