Altosid 30 Day Briquets (100 per case) feature the active ingredient (S)-Methoprene , which stops larval development in mosquito breeding sites. Altosid Briquets provide for up to 30 days of control in standing water, and are an ideal solution for backyard mosquito control. Altosid Briquets can be applied by dropping in areas of standing water.
Controlled Pest: mosquitoes.
Use on: mosquito breeding sites, such as catch basins, storm drains, birdbaths, gutters, tires, other water-holding containers.