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Altosid Pro G Mosquito Larvacide

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Altosid Pro-G Mosquito Larvicide is great product to keep mosquitoes away. Thanks to Altosid Pro-G, staying free from mosquito bites is as simple as putting the directed amount of granules in areas such as shrubs or even water where mosquitoes may breed.

Target Pests

Altosid Pro-G is designed to prevent mosquitoes from breeding and becoming biting adults

For Use In

Non-Crop Areas: Altosid Pro-G may be applied as directed above to temporary and permanent sites which support mosquito larval development. Examples of such sites include: snow pools salt and tidal marshes freshwater swamps and marshes (cattail red cedar white maple marshes) woodland pools and meadows dredging spoil sites drainage areas ditches wastewater treatment facilities livestock runoff lagoons retention ponds harvested timber stacks swales storm water drainage areas sewers catch basins tree holes animal watering troughs water holding receptacles (e.g. tires urns flower pots cans and other containers) and other natural and manmade water-holding depressions.

Crop Areas:Altosid Pro-G may be used in sites such as: irrigated croplands pastures rangeland vineyards rice fields (domestic and wild) date palm citrus fruit nut orchards berry fields and bogs.


Apply product at any stage of larval mosquito development. Granules may be applied prior to flooding (i.e. pre hatch or pre flood) in areas which flood intermittently. In such areas, one application of Altosid Pro-G can prevent adult mosquito emergence from several subsequent floodings. The actual length of control depends on the duration and frequency of flooding events.

Sprays such as Vector Ban Plus or Cyonara 9.7 are great choices to apply on mosquito harborage sites to eliminate adult mosquitoes.


Coverage Area

Altosid Pro G will treat 20,183 gallons of water or 5,455 square feet

Time to Kill

Altosid Pro-G hinders mosquito larvae from further development

Active Ingredient

Methoprene 1.5%

Altosid Pro G Mosquito Larvacide

Altosid Pro G Mosquito Larvacide

Altosid Pro G Mosquito IGR Lavacide is a great product to put a stop to mosquito larvae, stopping a new generation of pesky moquitoes from growing and creative problems. Altoside contains (S)-Methoprene 1.5% which effectively kills mosquitoes before they hatch. Scatter the granules in areas where mosquitoes may breed to prevent them from reaching adulthood. When carrying out a mosquito control program, it would be wise to consider using insect growth regulators (IGR'S) since adult mosquitoes aren't the only problem to deal with.


Altosid Pro G should ideally be applied in water where mosquitoes breed. Some of the prime areas around the home which can be breeding grounds for mosquitoes include: bird baths, flowerpots, ornamental fountains, gutters, rain barrels, pool covers, puddles, horse troughs, and other water-holding receptacles. 1 package of Altosid Pro G (2.5 lbs) can cover an area of 5,445 sq ft or 20,183 gallons of water and remains effective for up to 30 days.


How to Apply Altosid Pro G Larvacide

Altosid Pro G is fairly simple to apply. The granules put a stop to mosquito larvae transitioning into adults, including those which may transmit harmful diseases such as West Nile and the Zika virus. Altosid can work for up to 30 days after application. Applications should be continued throughout the mosquito season to maintain adequate control.Treated larvae continue to develop normally to the pupal stage where they die.


Using the application rate table which comes on the product label,  measure and then scatter the suggested amount of Altosid Pro G evenly over the surface of the water to be treated. For continued mosquito control, you should apply Altosid pro G every 30 days throughout the season. When used according to the product label, this product will not cause any adverse affects in humans, animals, fish or vegetation.


Additional Mosquito Treatment Tips

  • Mosquitoes lay their eggs in standing water. We recommend that aside from using Altosid Pro G, you do your due diligence to remove, reduce or treat any stagnant bodies of water in receptacles or containers in your yard.
  • Stagnant water can be treated with IGRS such as Altosid Pro G IGR . This product prevents developing mosquitoes from ever reaching the adult stage.
  • Remove litter from your yard. Mosquitoes can lay eggs in small, discarded items that can hold water such as cans, bottles, and wrappers. Stay indoors during dawn, dusk, and early evening when mosquitoes are more likely to bite.




Mosquitoes can turn any outdoor activity, whether if it’s a barbecue, pool party, or a simple game of catch with your dog, into painful and annoying affairs.


Worse still, mosquitoes are carriers of multiple (and often deadly) diseases and all it takes is one bit from these dangerous and resilient bugs to be infected.


Click Here to Find Out How To Get Rid of Mosquitoes in Your Yard


Some of the diseases that mosquitoes have helped spread across the world include, the West Nile Virus, Malaria, Zika, Dengue, yellow fever, among many others.


An infestation of mosquitoes near your home or backyard should always be treated seriously as these pests can pose a threat to your family, as well as your pets (click here to learn more about residential mosquito control).


If you can’t count how many times you’ve bought ineffective mosquito sprays at your local grocery store, that only seem to work for a couple of hours at best, and you keep finding more and more of these pests every time you step outside, our 100% Guaranteed Mosquito Control Kit is for you. 


Created by Solutions Pest and Lawn after years of tinkering and experimenting we’ve developed a Kit designed to tackle your mosquito problem in every single one of their stages (larva, pupa, and adult stage).


This Kit provides cyclical treatment with a variety of products that eliminate the population, maintain control, and create preventative measures against re-infestation.


This kit has also been developed under the supervision of Entomologists and has been tested and proven to work in numerous trials. It is so efficient that we guarantee 100% you will obtain optimal results, or we will refund your purchase.


Reclaim IT, one of the products found in the kit, also comes with the 100% money back guarantee, because just like the kit, it has been proven and tested to bring satisfactory results. This product is ideal to use as a perimeter treatment around your home and for cracks and crevices. In fact, it is one of the most popular insecticides found in our stores as it targets more than 75+ species of pests. This product is recommended by our Entomologists as an adulticide when dealing with a mosquito infestation.


Another product found in our 100% Guaranteed Control Kit, is Altosid Pro G Mosquito Larvacide, an IGR, powerful enough to be bought alone if you’re looking for an effective way to control your mosquito population.




IGR stands for Insect Growth Regulator. Products in the pesticide and insecticide market that contain IGRs work to stop the life cycle of the specified bugs.


Some IGRs, not all of them, work differently than products that kill on contact in that IGRs target pests that are in the development stage (as eggs or pupa) or are about to hatch into adults, and not the adult insects themselves.


In other words, they halt their reproduction cycle and slowly eliminate the population.


It just so happens that Altosid Pro G Mosquito Larvacide might be one of the most efficient IGRs in the market when dealing with a mosquito infestation.




Created by Zoecon, a chemical manufacturing company established in 1968, this product was made to disrupt the lifecycle of mosquitoes on its tracks.


To only proof you should need for using this product, is that we have included in our 100% Guaranteed (or your money back) Mosquito Control Kit. After selling pesticide products for 60 years we deemed it effective enough to be included in our battle-tested kit.


Its active ingredient and IGR, S- Methoprene, works like an important juvenile hormone in mosquitoes, and larvae that are exposed to it, will develop to the pupal stage, but ultimately fail to develop into adults.


Methoprene has been determined by the USEPA (United States Environmental Protection Agency) as having low toxicity so you don’t have to worry about any environmental hazards.


The product also has a moderate residual control of up to 30 days, so re-application should be done every month until the population is controlled or during the breeding season.


This product can be used outside in your yard, or directly in their breeding beds, which tend to be standing water sources, such as birdbaths, flowerpots, ornamental fountains, gutters, water gardens, rain barrels, puddles, and small drinking receptacles where animals drink.


It has an impressive yield; a single cup of this product can treat up to 2,400 square feet in the yard or in water surfaces areas less than 2ft deep, or in water bodies with approximately 9,600 gallons of water.


The product comes in a 2.5-pound bottle that should be more than enough for residential and backyard treatment.


The only drawback of this product is that it does not work on adult mosquitoes, it only works in mosquitoes that are in the developmental stage such as larvae.




This product is labeled safe to use in irrigated croplands, pastures, rangeland, vineyards, rice fields (domestic and wild), date palm, citrus, fruit, nut orchards, berry fields, bogs, snow pools, salt and tidal marshes, freshwater swamps and marshes (cattail, red cedar, white maple marshes), woodland pools and meadows, dredging spoil sites, drainage areas, ditches, wastewater treatment facilities, livestock runoff lagoons, retention ponds, harvested timber stacks, swales, stormwater drainage areas, sewers, catch basins, tree holes, animal watering troughs, water holding receptacles (e.g., tires, urns, flower pots, cans, and other containers), and other natural and manmade water-holding depressions.




Before using this product take precaution to read all labeled instructions and always remember to wear protective equipment (click here to browse our protective equipment).


This product is meant to be used, for best results, in mosquito breeding beds, which would be any standing bodies of water close to your property.


However, it can also be applied to pastures and rangelands if temporary bodies of water where to develop where mosquitoes may breed. Our Chapin granular spreader (which you can buy here) would be ideal when spreading the product and making sure it is evenly distributed in these areas.


Before beginning to apply this product make sure to empty and discard any water containers, which may harbor mosquito larvae.


The best way to control the infestation is to get rid of the bodies of water where they reproduce.


If you can’t empty out or discard small containers where bodies of water may develop then these places are ideal spots where the application can begin.


It should be noted that this product is not meant to be used in Pools. If you regularly chlorinate your swimming pool and maintain proper pool maintenance then no mosquitoes should be able to breed in your pool.


Once you have identified the bodies of water where mosquitoes might breed, a good rule of thumb is to use approximately 80 granules of product for every gallon of water.


On the label, you’ll find a table of application rates for all sizes and volumes of water as well as recommended quantities of product depending on the size of treatment areas. Check with this table if you’re unsure how much to apply.


Then, simply measure the amount of product that the volume of water calls for, and spread across the surface of the water and walk away. The product will start working and keep releasing effective levels of the IGR for up to 30 days.


If the bodies of water are subject to water flow or exchange it is recommended that higher application rates are used to properly treat the area.


Revisit bodies of water after a month and re-apply to prevent re-infestation.




We carefully chose and pick which products should go in our 100% Guaranteed Control Kits, after all, we always guarantee their effectiveness.


The fact that Altosid Pro G Mosquito Larvacide comes included with our Mosquito Control Kit should tell you everything you need to know.


This is an excellent product that will halt the reproduction of future mosquitoes in and around your backyard. You can’t go wrong with this one. 


Product Q & A

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Browse 2 questions Browse 2 questions and 2 answers
Can you deleate this in water then use sprayer to spray?
Dawg on Aug 10, 2016
BEST ANSWER: Altosid Pro G is not meant to mixed with water and sprayed. It is to be sprinkled in the standing water areas.

Better to use a mosquito control sprays such as Cyzmic to spray all the area to better control your populations.
is this safe for dogs? I have a little 9 pound min-pin who frolics around the pond/waterfall, will this burn his feet or poison him if ingested?
K on Jun 16, 2016
BEST ANSWER: No this will not harm your dog, you can use a dunk if you want it to be more controlled.

Customer Reviews

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1 Star
Altosid PRO G Mosquito Larvacide
We start using this product around the end of February beginning of March around the areas that hold water, even if they're dry, and keep treatment going through the season. So far as we've been using it, it's worked great.
May 5, 2017
Will buy again
Mosquitoes are gone
May 4, 2017

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