苏云金杆菌杀虫剂（BT）是目前使用最广泛的一种生物农药，它通过微生物发酵获得，生产过程中不污染环境，不危害人体健康。该杀虫剂对大田农作物的稻螟虫、稻纵卷叶螟、稻苞虫、棉铃虫、棉造桥虫、高梁条螟、玉米螟、烟草虫、粘虫，蔬菜水果的菜青虫、辣椒钻心虫、小菜蛾、水 Bacillus thuringiensis (BT) is currently the most widely used biological pesticide, which is obtained by microbial fermentation, the production process does not pollute the environment, does not endanger human health. The insecticide is effective against field crops such as rice stem borer, rice leaf roller, rice shellworm, cotton bollworm, cotton bridge parasite, highland barley borer, corn borer, tobacco worm, armyworm, cabbage caterpillar of vegetable and fruit, Insects, diamondback moths, water