Bacillus thuringiensis israelensis

Bacillus thuringiensis serotype israelensis (Bti) is a group of bacteria used as biological control agents for larvae stages of certain dipterans. Bti produces toxins which are effective in killing various species of mosquitoes, fungus gnats, and blackflies, while having almost no effect on other organisms. Indeed, this is one of the major advantages of B. thuringiensis products in general is that they are thought to affect few nontarget species.