Larvicide - works well for any soil born larava, including but not limited to mosquitos, fungus gnats, bettle larva etc.  Microbe-Lift/BMC can be applied to areas that can contain aquatic life, fish and plants. Active ingredient BTI Microbe-Lift/BMC (Biological Mosquito Control) is specifically formulated for decorative water gardens, fountain and areas where standing water exists. Great for Hydroponics grows.  It kills developing mosquitoes before they become breeding, biting adults, including those which may transmit West Nile Virus and Equine Encephalitis,and those which may transmit Heartworm Disease to dogs and cats. Can also be applied to areas used by or in contact with humans, animals, livestock, pets, birds or wildlife.Up to 14 days activity depending on application siteDisperses easily in waterNo fish toxicityNo toxicity to non-target invertebrates No adverse aesthetics to the pond No organic or inorganic residues Significantly lower potential for development of resistance in target insect populations than chemical larvacides such as methoprene