苏芸金杆菌(Bacillus thuringiensis)是一类广谱昆虫病原菌,它对以鳞翅目为主的400余种昆虫有不同程度的毒杀和致病作用,目前已被许多国家研究利用,并作为细菌农药销售.苏芸金杆菌制剂对人畜安全、不污染环境,不杀伤天敌昆虫,有利于生态平衡,是一种有开发前途的无公害杀虫剂.83-1菌株是解思泌、于迎春、左瑞香从自然罹病死亡的菜青虫体内分离的一个新菌株, Bacillus thuringiensis is a kind of broad-spectrum insect pathogenic bacteria. It has toxic and pathogenic effects to more than 400 kinds of insects, Lepidoptera mainly, and has been used in many countries and has been used as Bacterial pesticide sales. Bacillus thuringiensis preparation for human and animal safety, does not pollute the environment, does not kill the natural enemies of insects, is conducive to ecological balance, is a promising development of non-polluting insecticides .83-1 strain is to think of secretion, Zuirui Hong from the natural death of Pieris rapae body isolated from a new strain,