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1大力应用生物农药 生物农药在蔬菜上应用后无污染、无残留，是一种无公害农药。目前，适用于蔬菜上的生物农药主要有Bt乳剂、阿维虫清、菜丰宁、农抗120、HD1、农用链霉素、天力等。如每亩用100～150gBt乳剂，对水50kg喷雾，可有效地防治菜青虫、小菜蛾、黄守瓜等害虫。?
A strong application of biological pesticides Bio-pesticides in vegetables after application of no pollution, no residue, is a pollution-free pesticides. At present, the biological pesticides for vegetables are mainly Bt emulsion, Avermectin clear, Cai Fengning, agricultural resistance 120, HD 1, agricultural streptomycin, such as Tianli. Such as per mu with 100 ~ 150gBt emulsion, spray 50kg of water, can effectively control Pieris rapae, diamondback moth, Huang Shougua and other pests. ?