Marshy swampy areas inundated with larvae? Sprinkle Mosquito Bits as a shock to quickly annihilate the larval population. A week after application either supplement with Mosquito Dunks (sold separately), for long term control or continue to add Bits on a bi-weekly basis. Mosquito Bits are now labeled to control fungus gnats in plant beds or pots! Utilizing a similar mode of action for control of mosquito larvae, the Bits either sprinkled on the soil surface or mixed with potting soil prior to planting will kill fungus gnat larvae with the same safety and target specific control offered for mosquito larvae.