Use in water gardens, flower pots, rain barrels, bird baths, Kills mosquito larvae that transmit West Nile Virus, Encephalitis, Malaria, Dengue Hemorrhagic Fever and more. Treats up to 2178 square feet. Sprinkle 1 teaspoon per 25 square feet or one tablespoon per 75 square feet to all containerized standing water. Reapply in 7 to 14 days. Also effective for fungus gnats. Marshy swampy areas inundated with larvae? Sprinkle some mosquito bits quick kill as a shock. Corn cob granules coated in bti, the bits do not last long but provide a punch that will turn water, black with larvae, to a clear pool void of future mosquitoes. Quickly kills mosquito larvae within 24 hours. Environmentally sound biological mosquito control. Sprinkle in any standing water, including gardens. EPA registered in all 50 states. After the initial use as a shock, supplement with mosquito dunks for long term control of larger areas. 8 ounce container with shaker top.