Control mosquito larvae in standing water around your home with Mosquito Beater Water Soluble Pouches from Bonide. These pouches can be used in water gardens, flowerpots, rain barrels, bird baths, gutters and more. The fast-acting granules release quickly from the dissolvable pouch and work to control mosquito larvae within 24 hours. Bonide Mosquito Beater pouches will not harm fish, amphibians or other beneficial aquatic organisms that are present. Mosquito Beater Pouches arrive conveniently ready-to-use. To use, place a pouch directly on the surface of the water to be treated. For full use instructions, please see product label. This package includes 24 0.2 oz pouches. One pouch treats up to 50 square feet of water.