summit Mosquito Dunks 5 Packs of 20 Dunks (100 total)

BTI Mosquito Briquettes are a sustained-release larvicide that conveniently floats right on the water surface. These briquettes can be used in virtually any standing water site where mosquito larvae grow. As the briquettes float, BTI (or bacillus thuringiensis israelensis, a natural mosquito-killing biocontrol agent) is slowly released at the water’s surface and gradually settles in the water where it is consumed mosquito larvae. Bti kills mosquito larvae before they are able to grow into mature, biting adults, eventually controlling the mosquito population. Additionally, the toxin will continue to be released into the water for a period of 30 days or more, providing continuous kill. Each briquette will effectively treat up to 100 square feet of surface water regardless of depth.
total dunks. Each briquette treats up to 100 sq ft of water
Active Ingredient: Bacillus thuringiensis subspecies israelensis solids, spores and insecticidal toxins, 10.31%
Target pests: Mosquitoes and Psychodid Flies, and their larvae
For use in: bird baths, old automobile tires, rain barrels, ponds, abandoned or unused swimming pools (particularly above ground types), ditches, tree holes, roof gutters for collecting rainwater, flower pots, animal watering troughs, waste water treatment plants, elevator shafts, basements that flood, sump pumps and any drainage areas within buildings
Pet safe: Yes; when used as directed