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Combination Bti/Bsph products


New, slow release formulations have recently come onto the market and been registered in Massachusetts. FourStar™ 45 day Briquets and FourStar™ CRG (Controlled Release Granules) are two such products CMMCP has used or are undergoing field trials.


FourStar™ Briquets contain the proven active ingredients Bacillus sphaericus (Bsph) and Bacillus thuringiensis israelensis (Bti). The environmental advantages of active ingredients Bacillus sphaericus and Bacillus thuringiensis israelensis are well known, making microbial larvicides the material of choice in many situations – CMMCP currently uses these briquets as a proactive control for Culex larvae in catch basins in the areas WNV was found the year prior.

 

To enhance the performance and control duration, FourStar has developed patent pending Dual Action Release technology. This innovative technology regulates the release of microbials to the water surface and throughout the water column as the briquet slowly dissolves. Bti and Bsph are naturally occurring soil bacteria that have insecticidal activity on mosquitoes. These bacteria contain protein crystals which, when ingested by mosquito larvae, rupture the gut wall of the larvae, resulting in larval death.

 

FOURSTAR BRIQUETS

FourStar 45

 

Pesticide Labels:

FourStar 45 day ()  FourStar 90 day ()

Safety Data Sheets (SDS):

FourStar 45 day ()  FourStar 90 day ()


FourStar™ CRG also contains the active ingredients Bacillus sphaericus (Bsph) and Bacillus thuringiensis israelensis (Bti), but in a slow release granule. CMMCP will be testing this product in 2014 against the Coquillettidia perturbans larvae, aka the “cattail” mosquito. This species has the unique ability as larvae to penetrate the root structure of emergent vegetation such as cattails, breathing though the plant’s vascular system. Since they are not free floating or dependent on the surface tension to breathe, most other conventional larvicidal products are not very effective.

FourStar Multi-Brood Controlled Release Granule - CRG - Image

 

Pesticide Label:

FourStar CRG ()

Safety Data Sheets (SDS):

FourStar CRG ()