Mosquito Dunks Organic 6/card

Description Kills mosquitoes before they’re old enough to bite Each dunk lasts for 30 days or longer and treats 9.29 Square meters of surface water Non-toxic and safe for all other wildlife, pets, fish, and humans For use in ponds, rain barrels, stock tanks, bird baths, planter saucers, and more The only product with BTI (Bacillus thuringiensis subspecies israelensis), bacteria toxic only to mosquito larvae