Summit Mosquito Dunks

The dunks contain a naturally occurring bacterium called Bacillus thuringiensis subspecies israeliensis (Bti). When mosquito larvae ingest this bacterium in the water, it releases a protein that specifically targets their digestive systems, killing them before they can develop into biting adults.

Yes, they are safe. The active ingredient is highly selective and only targets mosquito larvae, meaning it will not harm birds, pets, fish, or other wildlife that might drink from the treated water.

Absolutely. Because the product is biological and approved for organic production, it will not negatively affect your plants, soil, or the quality of the water for gardening purposes.

One dunk is effective for up to 100 square feet of surface water, regardless of the water's depth. For smaller containers like bird baths, you can break a single dunk into smaller pieces to treat the area effectively.

No, you do not need to remove it. The dunk will eventually break down on its own, but for best results, you should replace it every 30 days to ensure continuous protection throughout the mosquito season.

No, this product is strictly a larvicide. It is designed to interrupt the mosquito life cycle by killing the larvae in standing water, which prevents new generations from emerging.