1. Home
  2. Products
  3. IGRS
  4. Altosid® Pro-G

Altosid® Pro-G

A granular mosquito larvicide, Altosid® Pro-G prevents adult mosquito emergence in treated areas. This backyard mosquito control solution features the insect growth regulator (IGR) (S)-methoprene. Central Life Sciences’ Altosid® Pro-G mosquito larvicide is formulated with extended residual control, providing up to 30 days of protection in standing water.

Active Ingredients:

    (S)-Methoprene (CAS #65733-16-6) 1.50%


Mosquitoes and other listed pests


Apply larvicide to stagnant water where mosquitoes breed. Easy-to-use Altosid® Granules are approved for ornamental fountains and ponds, water troughs, birdbaths, pool covers, rain barrels, roof gutters and more.


  • Insect growth regulator breaks the mosquito life cycle
  • Includes convenient shaker top for easy application
  • Treats up to 5,455 sq ft or 20,183 gal of water
  • Approved to treat and prevent mosquitoes that can transmit West Nile virus, Zika virus, dengue fever, chikungunya, and other mosquito-borne diseases

Available Product Sizes

  • 2.5 lb bottle
  • 10 oz shaker bottle
EPA Reg. #2724-451
Altosid Pro-G mosquito larvicide offers backyard mosquito control with Altosid Granules. An insect growth regulator (IGR) containing (S)-Methoprene. Zoecon