Altosid Briquets 30 Day (100 briquets)

5 out of 5 stars 2 Reviews | 1 Q&A

Altosid Briquets 30 Day (100 briquets)

Buy 2 or more: $207.39 each

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Average Rating

5 out of 5 stars Rating: 5

2 Reviews | 1 Q&A

Product Overview

Altosid Briquets 30-Day (100 briquets) provides a sustained release mosquito growth regulator that can work for up to 30 days of control in water. It effectively kills mosquito larvae before they developed into harmful adults, spreading a lot of breeding, biting and diseases. Altosid Briquets is great to utilize in sites like water gardens, bird baths, pool covers, rain barrels, industrial or office parks, and other water-holding receptacles. This will not work on adult mosquitoes before treatment. To use, simply administer one briquette in the surface. One briquette will cover 100 square feet area. Product is available in package of 100.

Features and Specs

Active Ingredient S-Methoprene 8.62%
Target pests Larvae Mosquitoes - Anopheles, Culex, Culiseta, Coquillettidia, Mansonia, Aedes, Ochlerotatus, and Psorophora
NOTE: Will Not work on adult mosquitoes that are already emerged prior to treatment
For use in Bird Baths, Atrium areas, Retention Ponds, Industrial and Office Parks, Ornamental Ponds and Fountains, Gutters, Water Gardens, Rain Barrels, Pool Covers, Puddles, Horse Troughs, other Animal Drinking Water Receptacles
Application At the Beginning of the Mosquito Season and continue throughout the season
Apply one briquet per 100 square feet of surface area
Pet safe Yes, if used as directed on Label
Formulation Professional Product
Coverage Area 1 Briquette Treats up to 100 sq. ft.
Shipping Weight 1.78 lbs
Manufacturer Zoecon (Mfg. Number: 37090C)
EPA Registration 2724-375
5 stars   2
4 stars   0
3 stars   0
2 stars   0
1 star   0
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  • 5 of 5 Stars


    By Db on 06/08/2017

    Product arrived in just a day or two. No issues with placing the order. Product arrived as expected. As far as I can tell, the product is working as advertised!

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    2 of 2 people found this review helpful

  • 5 of 5 Stars

    heavy mosquito problem solved

    By Derek on 07/14/2023

    we had unusually heavy early rains this year in Fl and heavy mosquito problem on our horse farm. I have used these briquets for 2 years now,...They stop adult mosquitos from flying away from the water where larvae mature, and essentially stop the life cycle within 5-6 days! i keep a box on hand to treat early standing water! they even treat shallow flooded grass areas and seem to last more than 30 days! I am unsure how long a dry period between several flooding rains will affect the re-treatment schedule though...

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Questions & Answers

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Can Altosid briquets be used in an abandoned tank that contains only rain water?

I have an abandoned tank that will be demolished at some point in the future, but for now I have to deal with it filling with rain water. This is a concrete tank and I have to keep it full to prevent it from floating out of the ground due to high water table. Since I keep it over half full, with approximately 400,000 gallons of rain water in it, I don't want to start a mosquito farm, so I want to treat with Altosid. How many of the briquets would be needed to treat 400,000 gallons of water that is approximately 6 - 7 feet deep? Would Altosid in another form (granular, liquid) be better than the briquets?


The Altosid 30-Day Briquets would be appropriate for your needs.

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4 of 7 people found this answer helpful

Altosid Briquets 30 Day (100 briquets) 5 out of 5 stars Rating: 5 (2 Reviews / 1 Q&A)

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