Model # 110-12

Internet #100334779

Store SKU #284289

Summit 12 in. Mosquito Dunks (6-Pack)
0018506001100

Summit

12 in. Mosquito Dunks (6-Pack)

$942 /each
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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

Info & Guides

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Customer Questions & Answers

Is it safe to use in a decorative, 3-tier fountain? Could I break one disk into thirds and place a piece in each tier?

Fountain is not large, does not hold a lot of water.
Asked by: Lois
Thank you, both...I'm getting then that the mechanical apparatus of the electric fountain won't be harmed by the treated water being pumped through it?
Answered by: Lois
Date published: 2016-09-06

I have drains in the back yard that hold water. If I put a dunk in the drain, and then it rains, will it wash away? Or does the dunk sink?

Asked by: Richard
If you're talking about an open ditch drain that holds water between rains you can put one in a used onion bag (net type) and stake it to the ground
Answered by: Snowmutt
Date published: 2017-07-07

Mosquito Dunks in Ponds with Pump

Are the dunks safe to use with a pond pump for a water fall?
Asked by: Beejayem
I have a small 1000 gallon pond with a pump/waterfall. Without treatment I get mosquito larvae in my pond. I have used dunks and they work fine. They float on the surface whereas my pump is at the bottom. As someone else stated, the dunk will dissolve faster in moving water but I still prefer that over breeding mosquitos! I buy my dunks from The Home Depot as they are significantly cheaper than buying from the local pet store or even my online pet supplies outlet.
Answered by: Jim
Date published: 2017-06-05

Safe for tadpoles in pond?

I have a fish pond that recently became home to hundred of tadpoles so I am not using the pump and now have mosquito larvae. Will these dunks harm the tadpoles at all?
Asked by: ASimpson
Yes. I have used this product on a pond that had tadpoles, mature frogs, goldfish, and minnows with no ill impact on any of the wildlife. There was also a heron that came by and ate my goldfish and it's still around, so I am assuming it's safe for them too.
Answered by: Tim
Date published: 2017-07-11
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Customer Reviews

12 in. Mosquito Dunks (6-Pack) is rated 4.0 out of 5 by 16.
Rated 5 out of 5 by from 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. 
Date published: 2017-05-04
Rated 5 out of 5 by from Excellent!!! Works as advertised. I have collected rain water in my 96 gallon recycling bin and n... Excellent!!! Works as advertised. I have collected rain water in my 96 gallon recycling bin and noticed that after about 2 weeks it was full of mosquito larvae wiggling in the water. I dropped one "Dunk" and right away it attracted the larvae. After a few hours a whole bunch were floating dead and by the next day they were all dead. The "Dunk" was barely dissolved and it took care of the problem. Fantastic product for this problem.
Date published: 2017-01-31
Rated 5 out of 5 by from I used these in my gutters and open flower pots. I did notice a reduction in mosquitos in my back... I used these in my gutters and open flower pots. I did notice a reduction in mosquitos in my backyard last year. They are easy to use and keep in mind: you can break them into pieces. So, no reason to put a whole dunk in a flower pot tray.
Date published: 2017-05-05
Rated 4 out of 5 by from 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.
Date published: 2015-09-29
Rated 5 out of 5 by from So far so good. The dunks appear to reducing... So far so good. The dunks appear to reducing what used to be a significant mosquito problem posed by water continuously sitting in an in-ground drain on our property. Will update my review as the summer goes on.
Date published: 2017-06-13
Rated 5 out of 5 by from These work well in our ponds, however, the raccoons pull them out and break them to crumbs. We ha... These work well in our ponds, however, the raccoons pull them out and break them to crumbs. We have to get the blocks placed away from the edges where they will be protected.
Date published: 2017-06-14
Rated 1 out of 5 by from Results may vary... I hope my experience was the exception to the rule. I tried 3 packs of these things, along with a canister of the "Mosquito Bits" that you're supposed to use for best results according to the instructions. I saw no change at all in the mosquito larvae population of my water garden. The first pack didn't work at all, but maybe it just needed the "Bits." So I tried those and still saw no improvement, though they did clog my filter when I assumed I simply hadn't used enough. I ended up draining the garden and trying again this spring... I bought the second pack of Dunks, thinking maybe the first one was just a dud. I thought I saw a slight improvement, but it didn't last more than a week. Maybe I imagined it. I ended up adding the rest of the pack, thinking maybe there were just too many larvae and they couldn't all get enough of it. When that didn't work, I got one more pack. I knew it was stupid, but I had looked online and found no reason why it wouldn't work. And I really wanted it to work! The idea seemed too good to be true, but in my case, the product did not live up to the claims. I hope it works for others, because as I said, it's the kind of thing that sounds like a great solution to the problem. But for my 8'×8'×4" water garden, it just couldn't get the job done. I've ordered some "mosquito fish" in the hopes that they can eliminate the thousands of larvae that happily grow into adults in my Mosquito Dunk-saturated water. I would still recommend that others try this product, because if it works for them, that's wonderful. But for whatever reason, it didn't work for me at all. Maybe my mosquitoes are too picky about what they eat.
Date published: 2017-06-27
Rated 4 out of 5 by from dunks work! They really do work. Haven't found anything better besides eliminating standing water itself. I'll even siphon with aquarium hose if I cant dump out. I refuse to put poison and endanger non-offenders. Dunks beat putting vegetable or olive oil, too. Not as messy and last at least as long or longer, I wish they cost less $, and/or maybe more than just one brand or package size to choose from. In rainy weather, of course, need to use more, and more often. I also think they have a shelf life or need to be stored better than just in the package they come in. The dunks left over from fall until spring didn't work, wigglers still alive after two days. So I bought more, and they worked by the next morning. Guess if I had thought about what they're made of I would've stored left over dunks in a baggie and perhaps in the fridge during the winter break. Seems that just leaving in unsealed package, even though inside the house, they become ineffective.
Date published: 2015-06-29
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