VectoBac® DT

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VectoBac® DT

VectoBac® DT


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Product Specs: 37.4% Bti

Packaging: Sold in Case Quantities: 50 Tablets/Bottle, 400 Bottles/case


VectoBac DT is a tablet formulation of Bacillus thuringiensis subsp. israelensis (Bti, Strain AM65-52) designed for direct application to water containers for control of disease vectors such as Aedes aegypti and Aedes albopictus. This easy to use tablet is designed to provide extended residual control in various types of water collecting containers. VectoBac DT contains the same Bti strain that has completed the World Health Organization Pesticide Evaluation Scheme and contains no biological contaminants.

Where and When to Use VectoBac® DT:

VectoBac DT is intended for residential use. Do not apply directly to treated, finished water supply systems, as these systems are not considered mosquito breeding sites. For use in artificial containers used for water collection to control container mosquitoes. Artificial water containers may include drums, storage tanks, jars, rooftop catchments, ornamental fish ponds, ornamental pools or fountains, unused swimming pools, floor drains, and roof gutters.

Apply 1 tablet per 13.2 gallons (50 L). Reapply at monthly intervals as needed (when late-stage larval numbers return to pre-treatment threshold levels).


• The larval stages of mosquitoes are highly susceptible to Bti toxins.

• VectoBac DT consists of the same Bti strain and food grade inert ingredients found in VectoBac WDG.

• VectoBac DT formulation is specifically designed to deliver Bti toxins into the feeding zone of Aedes larvae, which are at the sides and base of artificial containers.

• VectoBac DT is fact-acting upon first application.

• Tablet size and application rate provides greater flexibility for small containers.

• Tablet is small and compact, making it easy to use by field technicians and allowing for ease of application into containers with narrow openings.

• A single tablet can be applied to dry containers or containers holding water volumes of ≤ 50 L (13 gallons). Retreat at label rates as required when pupae appear.

Mode of Action:

VectoBac DT (U.S.) is a direct tablet formulation of Bacillus thuringiensis subsp. israelensis (strain AM65-52) for control of container-breeding mosquito larvae. The product has a potency of 2,200 International Toxin Units (ITU) per milligram against Aedes aegypti larvae. VectoBac DT consists of only Bti (strain AM65-52) and food-grade (US EPA list 4) inert ingredients.

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