What this product is best at
What problem it solves
Summit 110-12 Mosquito Dunks (6-Pack) treats mosquito larvae in standing water that cannot be emptied, covered, or removed. It works upstream of the biting problem.
It does not kill the adult mosquitoes biting tonight and does nothing in dry vegetation or water outside the treated site.
Who should buy it and who should skip it
Match the product to the job before you spend. Coverage, power access, refill work, weather, and household constraints can change the answer.
Good fit
- You have a containerized standing-water site permitted by the label
- You need a labeled larvicide for a standing-water site that cannot be emptied
- You need to treat standing water that cannot be emptied or covered
Poor fit
- You have adult mosquitoes attacking you right now (dunks only kill aquatic wrigglers/larvae)
Use-case fit profile
These comparison scores organize the finder data. They summarize expected speed, stated coverage, run duration, maintenance, and non-target constraints. They are not laboratory test results.
Strengths and limitations
Strengths
- ✓Targets mosquito larvae in labeled standing-water sites for 30 days or longer
- ✓Floating donut design slowly dissolves over 30 days
- ✓Labeled for specified water sites including fish habitats, animal troughs, and birdbaths; follow label precautions
Limitations
- ✕Does not affect adult flying mosquitoes (pair with a spatial repeller or trap)
Specifications that affect the decision
| Manufacturer & Model | Summit Responsible Solutions — Summit 110-12 Mosquito Dunks (6-Pack) |
|---|---|
| Hardware Category | Larvicides (BTI Dunks) (LV) |
| Active Chemical / Compound | Bacillus thuringiensis israelensis (BTI - 10.31%) |
| EPA Regulatory Status | EPA-registered larvicide, Reg. No. 6218-47 |
| Defense Coverage Area | 1 Dunk treats up to 100 sq ft of surface water (regardless of depth) |
| Power Source & Fuel | None (Floating Biological Ring) |
| Battery / Run Duration | 30+ days continuous biological spore release |
| Operating Cost Factors | Varies with treated water area and the label replacement interval |
| Target Deployment Zones | standing_water, ponds, rain_barrels, gutters |
| Application Mode | water_treatment |
| Retailer & ASIN | Amazon — ASIN: B0000AH849 ↗ |
Household and environmental constraints
Never deploy pest control products without understanding the toxicological impact on children, household pets, and beneficial pollinators.
A biological larvicide for labeled standing-water sites that targets mosquito and blackfly larvae before they become adults.
Mode of Action: Larvae ingest crystalline endotoxins produced by BTI spores, which bind exclusively to alkaline receptors in mosquito gut linings, rupturing cell walls.
Target mosquito situations
Mosquito species differ in their peak biting times, flight distances, and disease transmission risks. Here is how Summit 110-12 Mosquito Dunks (6-Pack) performs against primary North American vectors:
Setup and use
Measure water surface area and use the portion in the package dose table. Place in a labeled water site, anchor if needed as directed, and follow the replacement schedule. Do not use in finished drinking water for people.
Verification source
Model-specific facts on this page were last checked 2026-09-29. Price ranges are planning ranges, not live-price claims.
Open the manufacturer or label source ↗
Regulatory status: EPA-registered larvicide, Reg. No. 6218-47
Frequently Asked Questions
How does Summit 110-12 Mosquito Dunks (6-Pack) work?
Summit 110-12 Mosquito Dunks (6-Pack) uses Bacillus thuringiensis israelensis (BTI - 10.31%) in standing water. Apply only to water sites and at the rate allowed by the current label.
What problem does Summit 110-12 Mosquito Dunks (6-Pack) solve—and what does it not solve?
Summit 110-12 Mosquito Dunks (6-Pack) treats mosquito larvae in standing water that cannot be emptied, covered, or removed. It works upstream of the biting problem. It does not kill the adult mosquitoes biting tonight and does nothing in dry vegetation or water outside the treated site.
What is the realistic coverage for Summit 110-12 Mosquito Dunks (6-Pack)?
The stated treatment capacity is 1 Dunk treats up to 100 sq ft of surface water (regardless of depth). Water surface area, depth, flow, organic matter, and label directions determine how much product the site needs.
Who should buy Summit 110-12 Mosquito Dunks (6-Pack)?
Homeowners with label-approved standing water that cannot be emptied or covered. It is a strong fit when You have a containerized standing-water site permitted by the label; You need a labeled larvicide for a standing-water site that cannot be emptied; You need to treat standing water that cannot be emptied or covered.
Who should skip Summit 110-12 Mosquito Dunks (6-Pack)?
Consider another approach when You have adult mosquitoes attacking you right now (dunks only kill aquatic wrigglers/larvae).
What does Summit 110-12 Mosquito Dunks (6-Pack) cost to buy and run for a season?
The typical purchase range is Under $20. Estimated operating consumables are Varies with treated water area and the label replacement interval, depending on season length, use frequency, and Amazon's current offer. Check Amazon before buying.
What setup and maintenance does Summit 110-12 Mosquito Dunks (6-Pack) require?
Measure water surface area and use the portion in the package dose table. Place in a labeled water site, anchor if needed as directed, and follow the replacement schedule. Do not use in finished drinking water for people. Power or delivery method: None (Floating Biological Ring). Runtime or treatment interval: 30+ days continuous biological spore release. Follow the current label and manual if either differs from this summary.
Can Summit 110-12 Mosquito Dunks (6-Pack) be used around children, pets, and pollinators?
Use Summit 110-12 Mosquito Dunks (6-Pack) only as the current label directs. The finder flags household constraints, but those flags do not replace the label. Keep the product and refills out of reach, follow every child and pet precaution, and protect pollinators whenever required.
Will Summit 110-12 Mosquito Dunks (6-Pack) stop adult mosquitoes that are already biting?
No. Larvicides act in water before mosquitoes become flying adults. Pair this treatment with source reduction and immediate personal or occupied-space protection when adults are already present.
Where should I use Summit 110-12 Mosquito Dunks (6-Pack)?
Use it only in standing-water sites allowed by the current label and only when the water cannot be drained, covered, or refreshed. Match the dose to the water surface area and replace it at the labeled interval.
Products that solve the other parts of the problem
Summit 110-12 Mosquito Dunks (6-Pack) handles one part of mosquito control. These products cover different jobs such as standing water, occupied-space protection, or personal protection.
