Mosquito Control Rings, Set of 6

Any standing water can breed swarms of mosquitoes, even your birdbath or rain barrel. Our Mosquito Control Rings contain Bt israelensis, a naturally occurring bacterium that kills mosquito larvae for a full 30 days. Each slow-release, floating Control Ring treats 100 square feet of surface area in your pond or water garden. Control mosquitoes naturally Rings last for a month Each ring treats 100 square feet 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


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