“77—1”菌是苏云金杆菌的变种,制成的菌剂是防治大白菜、甘蓝菜青虫的良好生物药剂。它主要是通过害虫取食而进入体腔繁殖,使害虫很快停止取食,体表变黑,内部组织坏死,直至死亡。“77—1 ”菌剂生产方法简单,原料易得,不污染环境,且残效期较长。每亩只需成本0.12元便可控制虫害发生。 “77-1” bacteria is a variant of Bacillus thuringiensis, made of fungus is a prevention and treatment of cabbage, cabbage Pieris good biological agents. It mainly enters the body cavity through the feeding of pests and causes the pests to stop feeding quickly, the body surface becomes black, and the internal tissues are necrosis until death. The method of “77-1” microbial agent is simple, the raw materials are easily obtained, the environment is not polluted, and the residual period is longer. Only 0.12 yuan per mu cost can control pests.