FOURSTAR BTI BRIQUET 150 - 18PPP FourStar® Bti Briquets are a highly selective microbial insecticide effective against mosquitoes in a variety of habitats for up to 150 days or more. FourStar® Bti Briquets release effective levels of Bacillus thuring
FOURSTAR BTI BRIQUET 150 - 18PPP FourStar® Bti Briquets are a highly selective microbial insecticide effective against mosquitoes in a variety of habitats for up to 150 days or more. FourStar® Bti Briquets release effective levels of Bacillus thuringiensis subspecies israelensis (Bti) to the water surface over time as the briquet dissolves.