A Mosquito Dunk looks like a small, beige donut which floats on standing water. As the Dunk slowly dissolves, it releases a bacterium which is toxic to all species of mosquito larvae. The active ingredient in Mosquito Dunks is Bacillus thuringiensis subspecies israelensis (Bti). Bti is a bacterium t...

Kills mosquitoes before they're old enough to bite. The Mosquito Dunks are America's best selling home owner mosquito control product. The only product with BTI, a bacteria toxic only to mosquito larvae, that lasts 30 days and treats 100 square feet of surface water. Non-toxic to all other wildlife...

BTI Mosquito Briquets are a sustained-release larvicide that conveniently floats right on the water surface. These briquets can be used in virtually any standing water site where mosquito larvae grow. As the briquets float, BTI (or bacillus thuringiensis israelensis, a natural mosquito-killing bioco...

Bundle includes 2 Summit Mosquito Dunks

Labeled for organic gardening. Kills mosquito larvae. A safe way to control mosquitoes before they become flying insects. Non-toxic to animals such as horses, fish, wildlife, birds and pets; also harmless to humans. Each dunk will last up to 30 days in standing water and will cover 100 sq. ft. Safe...

Quantity of (2) 20 packs: Mosquito Dunks Biological Mosquito Control. Kills Mosquitoe Larvae Before They're Old Enough To Bite, Easy To Use, Simply Place Mosquito Dunk In The Water Garden Or Any Standing Water, Keeps Working For 30 Days & More, Completely Degrades.

Any standing water can breed swarms of mosquitoes, even in your birdbath or rain barrel. Our Mosquito Dunks contain Bti (short for Bacillus thuringiensis subspecies israelensis.), a naturally occurring bacterium that kills mosquito larvae for a full 30 days. Each slow-release, floating ring treats u...