Bacillus Thuringiensis Israelensis, abbreviated as Bt, also known as Bacillus thuringiensis, is a type of crystal-forming Bacillus that includes many varieties. The bacteria can produce two major toxoids, namely endotoxin (with crystals) and exotoxin. After the pests are fed, the bacteria release toxins, poison the bacteria and stop feeding, and finally the pests under the action of the alkaline digestive juice of the intestines. Death due to hunger and blood and nerve poisoning. Therefore, the bacterium can be used as a microbial low-toxic insecticide for controlling a variety of pests of Orthoptera, Coleoptera, Diptera, Hymenoptera, especially Lepidoptera.

1. Bacillus thuringiensis is a microbial insecticide and can be used for agriculture and forestry. It has good control effect on Lepidoptera pest and pine caterpillar.

2. It is used for pollution-free biological insecticide, mainly for the prevention of food crops, cotton, apple and other crops Lepidoptera pests.

3.Lepidoptera pests (such as Pieris rapae, Plutella xylostella,
Tea caterpillar, jujube geometrid, pine caterpillar, cotton bollworm, rice Chilo suppressalis, Rice stem borer, rice fir leaf borer, tobacco caterpillar, corn borer, etc.)