Janice from Fountain Hills, Az writes
BTI Mosquito Dunks are a sustained-release larvicide that conveniently floats right on the water surface. Each dunk contains a natural mosquito-killing biocontrol agent which is slowly released at the water’s surface and gradually settles in the water where it is consumed mosquito larvae. This product contains no poisonous chemicals and is harmless to other living things, such as birds.
Answer last updated on: 05/06/2021
