1.选用微生物农药 微生物农药属活体制剂,不会对蔬菜残留,故应大力提倡选用。目前,适用于蔬菜的微圭物农药有:白僵菌、7216、HD—1、青虫菌6号、BT乳剂、棉铃虫病毒杀虫剂等。如亩用100～150克BT乳剂兑水50公斤喷雾,可防治菜青虫、小菜蛾等多种蔬菜害虫。 2.使用土农药土农药原料来源广,制作简便,对蔬菜无副作用,应在蔬菜上大力推广应用,如烟草石灰水防治蔬菜上的蚜虫、红蜘蛛、粉虱等,防效可达85％以上。许多植物的茎叶,如大蒜、洋葱、蓖麻、山苍子、鱼藤、夹竹桃、闹羊花等,只要稍加处理便可制成土农药,用来防治蔬菜病害。 3.合理使用化学农药 蔬菜上要严禁使用高毒剧毒、高残留的农药,如甲胺磷、呋喃丹、1605、 1. Selection of microbial pesticides Microbial pesticides are living preparations, vegetables will not be left, it should be strongly advocated selection. At present, the micro-Gui Pesticides for vegetables are: Beauveria bassiana, 7216, HD-1, Coccidian 6, BT emulsion, cotton bollworm and other insecticides. Such as acres with 100 ~ 150 g BT emulsion watered 50 kg spray, can prevent cabbage caterpillar, diamondback moth and other vegetable pests. 2. The use of pesticides and pesticides from a wide range of sources of raw materials, production is simple, no side effects on vegetables, should be vigorously promote the use of vegetables, such as tobacco lime control vegetables on aphids, spider mites, whitefly, etc., control efficiency up to 85% the above. Many plants stems and leaves, such as garlic, onion, castor, Litsea cubeba, Rhodiola, oleander, flowers and so on, as long as the treatment can be made of soil pesticides, used to control vegetable diseases. 3. The rational use of chemical pesticides on vegetables to prohibit the use of highly toxic and highly toxic pesticides, such as methamidophos, carbofuran, 1605,