FourStar® Briquet BTI - 150 Day

FourStar® Sustained Release 150 Day Microbial Briquets feature a highly selective microbial insecticide designed to control mosquito populations for up to 150 days in a variety of habitats. The environmentally compatible Bacillus thuringiensis israelensis (Bti) formulation allows mosquito abatement professionals to apply FourStar® Bti Briquets in areas with aquatic life and that interact with humans and animals. Designed to withstand wetting and drying periods, FourStar® Bti Briquets can be applied to identified mosquito breeding habitats before and during the mosquito season, maintaining effective mosquito control for 150 days or more.

For effective control of mosquito larvae through the first three instars, apply one FourStar® Bti briquet to cover up to 100 square feet of area. For maximum effectiveness, apply briquet in shaded conditions.


  • 1 inch diameter, 0.875 inches high briquet shape
  • 7% Bacillus thuringiensis israelensis (Bti)
  • Sustained release technology
  • 100 square foot coverage area
  • 150 days or more of mosquito control
  • Residual Bti control
  • Ideal option for rotation plans

Manage mosquito populations and your mosquito abatement budget at the same time.

Learn more about our comprehensive lineup of solutions from an authorized distributor.

Stay up to date on the latest news, rebates, product innovations and more.