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12 in. Mosquito Dunks (6-Pack)

  • Contains BTI that effectively kills mosquito larvae
  • Safe for birds, pets, fish and wildlife
  • Ideal for rain barrels, birdbaths or any standing water
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Product Details

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
  • Return Policy

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Specifications

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Questions & Answers

58Questions
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Q:Will this be safe to use in standing water that my dogs will drink out of?
by|Jan 7, 2023
2 Answers
Answer This Question

A:  Yes, the Mosquito Dunks are actually labeled for use in animal watering troughs. There will be no issues with your dogs drinking the water.

by|Jan 7, 2023

    A:  Yes, this is absolutely safe for pets and wildlife if they drink the water the mosquito dunk is in. 

    by|Jan 15, 2023
      caret
      Q:How much do I put in a 55 gallon barrel?
      by|Oct 23, 2022
      4 Answers
      Answer This Question

      A:  Using only one should be sufficient. Read the instructions for clarity.

      by|Oct 27, 2022

        A:  I put 1 and when it dissolves another. Mine has a lid with screen opening.

        by|Oct 25, 2022

          A:  Each Mosquito Dunk covers up to 100 square feet of surface water regardless of the depth. For a 55 gallon barrel, 1/4 of one Dunk would be sufficient.

          by|Oct 24, 2022

            A:  Because mosquito larva are only in the top 1 inch of water, and due to the circumference of a 55 gallon barrel, you only need 1/2 of a mosquito dunk ring once a week.

            by|Oct 31, 2022
              caret
              Q:How about in gutters
              by|Sep 3, 2022
              4 Answers
              Answer This Question

              A:  If you gutters hold water, you should have them checked.  any standing water can be treated with these tablets

              by|Sep 6, 2022

                A:  The dunk must be on top of the water.  If you could secure the dunk, so that remains on top of the water, it most likely work.  I am not sure why you would have standing water in gutters, unless the gutters have not been cleared of debris.  Water should leave the gutters very quickly, if the gutters are clean.  We have used these dunks for at least 7 years & probably closer to 10 years.  they do work very well, if the directions are followed.  We have several 55 gallon barrels for water collection.  Each has a screen wire covering & I place a dunk on each cover on the areas where water pools.  We have no mosquito larvae!  

                by|Sep 22, 2022
                  1 found this answer helpful

                  A:  Yes, perfect for use in gutters. Tie a string through a hole in the center of the Dunk and secure it to the gutter so it does not wash away.

                  by|Sep 3, 2022

                    A:  Gutters should not be a source of standing water. Gutters should be catching the water as it comes off the roof diverting it to a downspout and then dispersing it away from the structure, However, if your gutters are clogged and you have standing water in them, then putting mosquito dunk in there will work to kill any mosquito larvae. 

                    by|Sep 12, 2022
                      caret
                      Q:Will dunks kill no see um larva
                      by|Jul 6, 2022
                      4 Answers
                      Answer This Question

                      A:  Sorry, not for no see um larva.

                      by|Jul 7, 2022

                        A:  As far as I could tell, yes but we go through rain water fairly quickly. But at times we do let it sit and baby biters form. The dunks work. 

                        by|Jul 29, 2022

                          A:  There is a possibility it may as Mosquito dunks consist of a certain type of bacteria as their main ingredient: BTI. Bacillus thuringiensis subspecies israelensis (BTI) is a type of bacteria that kills mosquito larvae before they hatch. This BTI also targets the larvae of fungus gnats, black flies and biting midges (no see ums). 

                          by|Nov 17, 2022
                            2 found this answer helpful

                            A:  I think so. I know that I have no problems when I put these down. They last a long time as well.

                            by|Oct 1, 2022
                              1 found this answer helpful
                              Showing 1-4 of 58
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                              Customer Reviews

                              4.5 out of 5
                              (778)
                              • 4.5
                                out of 778 reviews
                              • 93%recommend this product
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                              Showing 1-10 of 778 reviews
                              They Really Do Work!!
                              Mosquitoes love to bite me. But now I use Dunks. Put one in standing water, or just 1/2 or 1/4 depending on the amount of water to be treated. Lasts for month. Doesn't kills mosquitoes BUT, kills their eggs and larva. Will not harm animals. Love 'em, been using Dunks for 5 years!! To discourage already flying mosquitos, put several dryer sheets into your pockets. Works for me!
                              by
                              • Verified Purchase
                              • Recommended
                              1 found this review helpful
                              I was getting MASSIVE mosquitos by my basement door from...
                              I was getting MASSIVE mosquitos by my basement door from the bad rain and was at my wits end! Someone told me about these. I took a plastic food container made some small holes, added “OLD STANDING WATER” & broke up 1 piece. Took a couple days but IT WORKS!!!! Holy crap y didn’t someone tell me about this sooner!!!
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                              • Verified Purchase
                              5 found this review helpful
                              Fungus gnats solution!!
                              These helped immensely with my fungus gnat problem in my house plants. Just soak them in a bucket of water for 24 hours and water your plants. Worked wonders!
                              by
                              • Verified Purchase
                              Product works amazingly but I feel like the package claims you need to use way more than you actu...
                              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!!
                              by
                              • Verified Purchase
                              • Recommended
                              4 found this review helpful
                              We found the best way to eliminate mosquito populations was to keep a single point of water open ...
                              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.
                              by
                                • Recommended
                                22 found this review helpful
                                An excellent product for preventing and treating mosquito's in small bodies of water.  I have use...
                                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. 
                                by
                                • Recommended
                                16 found this review helpful
                                MOSQUITO DUNKS really work
                                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.
                                by
                                • DIY
                                • Recommended
                                28 found this review helpful
                                These work great and won’t adversely affect livestock. Our horses...
                                These work great and won’t adversely affect livestock. Our horses drink from our pond and we have used these for years to keep the mosquito population down and they work great!
                                by
                                • Verified Purchase
                                Very good product Sam...
                                Very good product Sam
                                by
                                • Verified Purchase
                                These dunks work pretty good . Would recommend to get...
                                These dunks work pretty good . Would recommend to get rid of mosquitoes
                                by
                                • Verified Purchase
                                Showing 1-10 of 778 reviews

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