Mosquito Dunks biological mosquito control contains Bti, a natural mosquito larvicide, which kills mosquito larvae, but is harmless to birds, fish, wildlife, and pets. Simply place a Dunk in any standing water to control mosquito larvae for up to 30 days.
Available in 2 packs and 6 packs.
Stop Mosquitoes from Breeding in Your Birdbath or Pond!
- Control mosquitoes naturally with a biological mosquito larvicide
- Bti produces toxins that specifically affect the larvae of only mosquitoes, black flies and fungus gnats
- Rings last for a month
- Each ring treats 100 square feet for 30 days
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 up to 100 square feet of surface area in your pond or water garden.
- Rings measure 2-1/4″ in diameter by 3/4″ thick
- Each ring, placed in water, controls 100 square feet of water surface area, no matter how deep
- Can be stored in a dry, cool area for up to two years