FourStar® MBG

FourStar® MBG is a heavy, high-density and sand-based larvicide with Bs and Bti dual active ingredients. It is most effective in semi-permanent or permanent water habitats providing up to 4 weeks of residual. A dual action release technology in FourStar® MBG produces results within the first 48 hours of application for a quick and effective kill of mosquito larvae.


  • High density, spherical silica sand carrier
  • Combination Bs and Bti active ingredients
  • Dual-action flash release technology
  • Bulk density at 65 lbs/ft3
  • Up to 4 weeks residual
  • Control of both floodwater species and Culex species


  • Covers wide range of mosquito species
  • Heavier granule provides optimal vegetation penetration
  • Long residual saves labor
  • Dual active ingredients help prevent resistance development
  • Granules are easy on equipment
  • Expanded aerial application window
  • Less target drift
  • More coverage per application


FourStar® MBG is approved for ground and aerial application at a minimum of 5 to 10 lbs/acre up to 20 lbs/acre.

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