- Contains BTI that effectively kills mosquito larvae
- Safe for birds, pets, fish and wildlife
- Ideal for rain barrels, birdbaths or any standing water
- See More Details
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Product Overview
Mosquito Dunks biological mosquito control contains Bti, a natural mosquito larvicide, which kills mosquito larvae, but is harmless to birds, fish, wildlife, and pets. Simply place a Dunk in any standing water to control mosquito larvae for up to 30 days. Each Dunk treats up to 100 square feet of surface water regardless of depth. Perfect for Koi Ponds, Hydroponic systems, animal watering troughs, rain barrels, birdbaths, stock tanks, planter saucers, or any other standing water.
- Kills mosquitoes before they are old enough to bite
- The professional mosquito control product available for the homeowner. Used and recommended by mosquito abatement professionals and Health Departments for over 25 years. The quintessential highly effective low environmental impact mosquito control product!
- Harmless to honey bees, beneficial insects, pets, and wildlife! Kills mosquito larvae and nothing else!
- Labeled For Organic Gardening by the US EPA.
- Unused, dry Dunks retain their potency indefinitely and can be halved and quartered for small areas of water
- Contains Bti a species specific bacterium and food grade inactive ingredients
- This product is applicable for the following pest types: Mosquitos
Info & Guides
Product Overview
- Contains BTI that effectively kills mosquito larvae
- Safe for birds, pets, fish and wildlife
- Ideal for rain barrels, birdbaths or any standing water
Compare Similar Insect Killer Granules
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| Brand | BioAdvanced | BioAdvanced | BioAdvanced | Summit |
| Name | 32 oz. Concentrate All-in-1 Rose and Flower Care | 32 oz. Concentrate Tree and Shrub Protect with Feed | 4 lbs. All-in-1 Rose and Flower Care Granules | 12 in. Mosquito Dunks (6-Pack) |
| Price | $1714 | $1897 | $1998 | |
| Ratings | (341) | (488) | (407) | (460) |
| Pest Common Name | Aphids,Beetles,Flies | Aphids,Beetles,Flies,Moths | Aphids,Beetles,Flies | Mosquitos |
| Application Type | Drench | Drench | Granular | Tablet |
| Location | Garden | Garden | Garden | Garden,Home |
| Garden Pest Location | Flowers,Ornamentals,Perennials,Shrubs | Evergreens,Flowers,Ornamentals,Perennials,Shade Trees,Shrubs | Flowers,Ornamentals,Perennials,Shrubs | Water Sites |
| Indoor/Outdoor | Outdoor | Outdoor | Outdoor | Indoor,Outdoor |
| Safe for Edibles | No | No | No | Yes |
| Concentrated or Ready to Use | Concentrated | Concentrated | Ready to use | Ready to use |
| View Product | View Product | View Product | View Product |
Compare Similar Insect Killer Granules
| | | | |
| Brand | BioAdvanced | BioAdvanced | BioAdvanced | Summit |
| Name | 32 oz. Concentrate All-in-1 Rose and Flower Care | 32 oz. Concentrate Tree and Shrub Protect with Feed | 4 lbs. All-in-1 Rose and Flower Care Granules | 12 in. Mosquito Dunks (6-Pack) |
| Price | $1714 | $1897 | $1998 | |
| Ratings | (341) | (488) | (407) | (460) |
| Pest Common Name | ||||
| Application Type | ||||
| Location | ||||
| Garden Pest Location | ||||
| Indoor/Outdoor | ||||
| Safe for Edibles | ||||
| Concentrated or Ready to Use | ||||
| View Product | View Product | View Product | View Product |
Specifications
Dimensions
Product Depth (in.)
5.8 in
Product Height (in.)
12 in
Product Width (in.)
0.8 in
Details
Application Type
Tablet
Concentrated or Ready to Use
Ready to use
Garden Pest Location
Water Sites
Indoor/Outdoor
Indoor,Outdoor
Location
Garden,Home
Organic
Organic
Pack Size
6
Pest Common Name
Mosquitos
Pest Control Type
Lawn Insect Control
Primary Active Ingredient
bacillus thurengiensis israeliensis
Product Weight (oz.)
2.75 oz
Safe for Edibles
Yes
Safe for Pets
Yes
Questions & Answers
49Questions47Answers
How often should you replace it?
Asked by GailA September 2, 20204
Answers30 days or whenever the dunk is no longer visible
How to delete from cart
Asked by TJ August 10, 20201
AnswerClick ‘Remove’ directly below the product
Would it be possible to simply breed these bacteria by feeding it sugar or some type of food in a...
Asked by Joe May 29, 20203
AnswersHow big of a water source are you trying to treat? If it is a pond then add mosquito fish. I have a small pond out front with fish and no baby mosquitos. I use the dunks in my rain barrels.
Can I use the mosquito tabs and chlorine tabs in my pond? I have a large buildup of algae.
Asked by T224 May 26, 20205
AnswersNo. Fish and other aqua animals will not survive at those chlorine levels.
I have corrugated pipe extending 20 feet for downspout gutter drainage. Will this be effective i...
Asked by MM May 3, 20203
AnswersI have the same thing and it works great as long as it is attached to the downspout.
Where is this made?
Asked by dhg March 30, 20205
AnswersUSA
When is the earliest I can apply these dunks? It is May 22 in NC and mosquitoes have have not sta...
Asked by Apex March 22, 20207
Answersprevention works,
Do you actually put it in the 50 gallon rain barrel? or on top of it for potential overflow stand...
Asked by Hitman February 18, 20206
AnswersYes and yes
is it safe for fish tanks?
Asked by bg October 9, 20196
AnswersYes
Can these be used for the standing water on the cover of an above ground pool that has about 6" of water laying on it.
Asked by Colleen September 23, 20197
AnswersYes
Customer Reviews
Overall Ratings
Product works amazingly but I feel like the package claims you need to use way more than you actu...
May 28, 2019
Product works amazingly but I feel like the package claims you need to use way more than you actually do. We have a 28 ft wide pool, according to the package, we needed to use all 6 dunks but I opted to use only two and it worked like a charm!!
We found the best way to eliminate mosquito populations was to keep a single point of water open ...
August 1, 2018
We found the best way to eliminate mosquito populations was to keep a single point of water open (eliminate all others) and available (ours is about 3-4 inches deep and 2 ft2 surface area, and containing these mosquito "dunks." I replace the dunk every 2-3 weeks. Female mosquitoes choose the spot to lay their eggs and all larvae die, eliminating the problem at the source. We spend evenings on our Atlanta patio free of any mosquitoes.
An excellent product for preventing and treating mosquito's in small bodies of water. I have use...
May 4, 2017
An excellent product for preventing and treating mosquito's in small bodies of water. I have used these for years with tremendous success in a small outdoor fish pond as well as a variety of pots/planters filled with aquatic vegetation.
My wife has a problem with water plants, she really likes them and despite my absolute hatred of mosquito's, she insists we maintain a small armada of planters outside. These are a staple in my arsenal to combat the wretched flying bloodsuckers that are so often associated with stagnant water.
Here in Northern Virginia, I replace them on the first of every month from April to September. They work very well as long as they are used according to the instructions. Though they say they treat 100 square feet, I generally double the dose for a small pond of about that--adding two tablets at alternate ends of the pond. This strategy has worked exceptionally well with no detriment to the plants or fish. For smaller applications, one dunk does the trick.
MOSQUITO DUNKS really work
September 29, 2015
These MOSQUITO DUNKS really work and they are safe for birds and pets. They are not toxic and work as a biological control. We live on the Texas gulf coast and we have been using them for at least five years. Since we have been using them we haven’t seen a wiggle tail in or bird baths. We normally add ¼ of a “dunk” per bird bath every six weeks throughout the 9 months of summer we have here. The dunks come in a sealed up bubble pack that lets you open and remove them one at a time. We store all the unopened and opened dunks in an airtight plastic bag. They will crumble if you let them get damp.
Rating provided by a verified purchaser...
November 26, 2020
Rating provided by a verified purchaser
I thought they would be more potent. But they did...
November 21, 2020
I thought they would be more potent. But they did work some.
Rating provided by a verified purchaser...
November 13, 2020
Rating provided by a verified purchaser
Seems to be working, although it may just be the...
November 13, 2020
Seems to be working, although it may just be the change of seasons. I will know better in the Spring.
November 12, 2020
Still lots of mosquitos around the water feature I have...using...
November 12, 2020
Still lots of mosquitos around the water feature I have...using citronella candles & plant at patio to help keep the mosquitoes from coming to bite us.
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