The Summit Mosquito Dunk 2-pack is a focused solution for homeowners with one or two specific areas of standing water. Utilizing a pressed cork-and-corn-cob matrix, these dunks are designed for a 30-day release window. The high-density formulation of the biological agent makes it an effective tool for monthly maintenance of birdbaths, rain barrels, or small ornamental ponds.
Design & Practical Anchoring
The dunk is specifically engineered for hydrophobic buoyancy, which keeps the treatment at the air-water interface where larvae are most likely to feed. A practical reality of this material is that the dunks often arrive with minor chips or breakage within the blister card. This does not impact the biological performance, as the material remains active regardless of its shape. Each dunk is rated to cover 100 square feet of surface area.
In locations where water is frequently added or overflows—such as gutters—the dunk can be swept away. A technical hack for better organization is to use a zip-tie or weighted string through the center hole of the dunk to anchor it in place. This ensures the biological payload isn't lost during heavy rainfall, keeping your water treatment consistent for the full 30 days.
- Targets only specific fly larvae, leaving fish and pets safe.
- 30-day lifespan simplifies your outdoor maintenance schedule.
- High concentration of active biological spores for reliable results.
For those needing to treat a larger number of water sources across a full season, the 20-count package provides better value and quantity.
Explore more biological control options for your outdoor spaces in the mosquito larvicide dunks category.
