biodegradable beige donut containing bacillus thuringiensis also known as bti for killing mosquito larvae

Mosquito Dunks®


Item# 8609558
$14.95 - $29.95


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Additional Information

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