Bti (Bacillus thuringiensis variety israelensis) is a bacterial toxin that infects and kills mosquito larvae. It is safe and environmentally sound because it is highly selective, killing larvae of the mosquitoes and black flies. Bti contains no poisonous chemicals and is completely harmless to human beings and other living organisms.Compared to harmful synthetic insecticides, Bti kills larvae quickly and efficiently. A moderate to heavy dose has been shown to reduce the mosquito population by one half in 15-minutes and the rest within one hour.

Bti (Bacillus thuringiensis variety israelensis) is a bacterial toxin that infects and kills mosquito larvae. It is safe and environmentally sound because it is highly selective, killing larvae of the mosquitoes and black flies. Bti contains no poisonous chemicals and is completely harmless to human beings and other living organisms.Compared to harmful synthetic insecticides, Bti kills larvae quickly and efficiently. A moderate to heavy dose has been shown to reduce the mosquito population by one half in 15-minutes and the rest within one hour.