Mosquito Dunks

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.

Product Details

• 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