Don't let mosquitoes breed in your rain barrel. Treat your Aquabarrel rain barrel with Mosquito Bits. These EPA-approved, all-natural products kill baby mosquitoes in the water, before they're old enough to bite. When Mosquito Dunks get wet, they release "B.t.i" (Bacillus thuringiensis israelensis bacteria) into the water. B.t.i. is a biological larvicide that is harmless to people, fish, birds, pets, and other animals, but deadly-and delicious-to baby mosquitoes (larvae).

They are effective even after repeated wetting and drying.

Mosquito Dunks also prevent mosquito infestations (the source of West Nile and Eastern equine encephalitis) from developing in other sources of standing water, such as compost piles, rain gardens, bird baths, flower pots, tree holes, water gardens, roof gutters, and animal watering troughs.

Please read and follow the manufacture's instructions carefully before using this product.