Mosquito Killer Dunks are a biological mosquito control solution designed to kill mosquito larvae before they become biting adults. Each dunk contains Bacillus thuringiensis israelensis (Bti), a naturally occurring bacterium that targets mosquito larvae in standing water. Safe for use around people, pets, fish, and wildlife, these dunks are ideal for ponds, bird baths, rain barrels, and other water-holding areas.
