Summit Mosquito Bits 20 lb organic larvicide — quick‑kill control for mosquito & fungus gnat larvae

Summit Mosquito Bits 20 lb is a quick‑acting, EPA‑deemed organic larvicide that targets mosquito larvae and fungus gnat larvae in standing water and potting soil.

Summit Mosquito Bits contain a bacterial larvicide formulated to interrupt the life cycle of mosquitoes and fungus gnats without harming people, pets, fish, birds, or beneficial insects. Packaged as small granules, the Bits release active spores that work quickly and persist in the treated area for up to 14 days, making them practical for ponds, rain barrels, troughs and containerized water. They are produced in the United States and come in a convenient 20 lb bulk bag for treating large properties, garden centers, farms, and multiple water features.

How fast do Summit Mosquito Bits work and how long will the effects last?

These Bits act on mosquito larvae shortly after contact so you should observe reduced larval activity within a day or two. Residual protection typically lasts up to 14 days, depending on water movement, sunlight, and organic load.

• Starts killing larvae within 24–48 hours under typical conditions
• Provides up to 14 days of control per application
• Reapply after heavy rain, when water is replaced, or as scheduled for ongoing control

Where can I safely use the 20 lb bag of Bits around my property?

These granules are suitable for almost any source of standing water where mosquito larvae develop. They are labeled safe for use in ornamental ponds, animal waterers, hydroponic reservoirs and garden containers when applied according to directions.

• Koi ponds and ornamental water features (follow label dosing for fish environments)
• Rain barrels, bird baths, gutters, and animal water troughs
• Hydroponic systems and standing reservoirs with manufacturer/label guidance

Can I use Summit Mosquito Bits for fungus gnats in potting soil?

Yes—apply Bits to the soil surface and water as usual to move the active ingredient down into the root zone where fungus gnat larvae live. This method targets the larvae while leaving beneficial predators and pollinators unaffected when used as directed.

• Sprinkle granules lightly on soil surface around seedlings and houseplants
• Water after application to carry the active spores into the root zone
• Safe for use in greenhouse and container production when label instructions are followed

Who is this for: Summit Mosquito Bits 20 lb is suited for homeowners, landscapers, farmers, pond keepers and greenhouse operators who need a ready‑to‑use, EPA‑deemed organic solution for controlling mosquito larvae and fungus gnats across multiple water sources and large areas. Choose this 20 lb supply if you manage several water features or need bulk granules for routine preventative treatments; always read and follow the product label for specific dosing, safety, and environmental instructions.

• Made in United States
• Package length: 10.5"
• Package width: 6.3"
• Package height: 1.0"