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Altosid XR Briquets, Mosquito Growth Regulator, Zeocon

Quick overview Altosid XR Briquets work by releasing effective levels of (S)-Methoprene insect growth regulator for up to 150 days in mosquito breeding sites. This will allow larve to grow to adult mosquitoes and then die.

Active Ingredients: (S)-Methoprene 2.1%
Insecticide Mode of Action Group: 7
Insecticide Class:
Insect Growth Regulator
EPA Signal Word: CAUTION / PRECAUCION
Application Rate Range: (see label)
Container Size(s): 220 Briquet Ingot Case

Altosid XR Briquets make application easier and still deliver season-long control of mosquito larvae for up to 150 days.


Altosid XR Briquets are specially designed to effectively control and prevent adult mosquito emergence in treated areas. It is just like Altosid 30 - Day Briquets, which require no expensive application equipment and can be pre-treated before wet season starts. That means you're better able to treat hard-to-access or out-lying areas, and can eliminate the additional costs associated with travel and multiple re-treatments.

Altosid XR Briquets are available in an "ingot" shape for easier application. This "ingot" shape (3 1/8" L x 1" H x 1 1/8" W) is narrower and longer than the existing "cork" shape, allowing the product to fit through virtually any storm drain or sewer without the need for lifting the grate. Now, Altosid XR Briquets make application easier and still deliver season-long control of mosquito larvae for up to 150 days.

Altosid XR Briquets work by releasing effective levels of (S)-Methoprene insect growth regulator for up to 150 days in mosquito breeding sites. This will allow larve to grow to adult mosquitoes and then die. However, it will not work with mosquitoes that are adults before treatment. It is advisable to be applied before the start of mosquito season or wet season. This allows for better coverage. 

Altosid XR Briquets prevent the emergence of adult mosquitoes including: Anopheles, Culex, Culiseta, Coquillettidia, and Mansonia spp., as well as those of the floodwater mosquito complex (Aedes, Ochlerotatus, and Psorophora spp.) from treated water.  treated larvae continue to develop normally to the pupal stage where they die.

Altosid XR Briquets will fit through any storm drain or sewer without having to lift the grate. Use sites include fish ponds, storm drains, catch basins, ornamental ponds and fountains, other artificial water-holding containers, and more. 

Product description

Altosid XR Briquets make application easier and still deliver season-long control of mosquito larvae for up to 150 days.


Altosid XR Briquets are specially designed to effectively control and prevent adult mosquito emergence in treated areas. It is just like Altosid 30 - Day Briquets, which require no expensive application equipment and can be pre-treated before wet season starts. That means you're better able to treat hard-to-access or out-lying areas, and can eliminate the additional costs associated with travel and multiple re-treatments.

Altosid XR Briquets are available in an "ingot" shape for easier application. This "ingot" shape (3 1/8" L x 1" H x 1 1/8" W) is narrower and longer than the existing "cork" shape, allowing the product to fit through virtually any storm drain or sewer without the need for lifting the grate. Now, Altosid XR Briquets make application easier and still deliver season-long control of mosquito larvae for up to 150 days.

Altosid XR Briquets work by releasing effective levels of (S)-Methoprene insect growth regulator for up to 150 days in mosquito breeding sites. This will allow larve to grow to adult mosquitoes and then die. However, it will not work with mosquitoes that are adults before treatment. It is advisable to be applied before the start of mosquito season or wet season. This allows for better coverage. 

Altosid XR Briquets prevent the emergence of adult mosquitoes including: Anopheles, Culex, Culiseta, Coquillettidia, and Mansonia spp., as well as those of the floodwater mosquito complex (Aedes, Ochlerotatus, and Psorophora spp.) from treated water.  treated larvae continue to develop normally to the pupal stage where they die.

Altosid XR Briquets will fit through any storm drain or sewer without having to lift the grate. Use sites include fish ponds, storm drains, catch basins, ornamental ponds and fountains, other artificial water-holding containers, and more. 

Product variants
Altosid XR Briquet Ingots, Mosquito Growth Regulator, 220 Briquet Case, Zeocon
Altosid XR Briquet, Mosquito Growth Regulator, 40 Briquet Case, Zeocon
Altosid XR Briquet work by releasing effective levels of (S)-Methoprene insect growth regulator for up to 150 days in mosquito breeding sites. This will allow larve to grow to adult mosquitoes and then die.

Priced Individually
PRICE BREAKS - The more you buy, the more you save
Quantity 2+
Price $215.95
Delivery date: 3-5 days
$218.95
Altosid XR Briquet Ingots, Mosquito Growth Regulator, 220 Briquet Case, Zeocon
Altosid XR Briquets, Mosquito Growth Regulator, 220 Briquet Case, Zeocon
Altosid XR Briquets work by releasing effective levels of (S)-Methoprene insect growth regulator for up to 150 days in mosquito breeding sites. This will allow larve to grow to adult mosquitoes and then die.

Priced Individually
PRICE BREAKS - The more you buy, the more you save
Quantity 2+
Price $938.95
Delivery date: 3-5 days
$942.95
Additional information
Manufacturer: Zoecon
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