Bacillus thuringiensis var. kurstaki (BTK) 10% WS is a biological insecticide developed for the effective management of Lepidopteran caterpillar pests in agricultural crops. It contains a highly effective strain of Bacillus thuringiensis var. kurstaki that acts through stomach action and controls larvae only after they feed on treated foliage. Once ingested, the active proteins damage the larval digestive system, causing the insects to stop feeding and eventually die. Its selective mode of action makes it an ideal solution for Integrated Pest Management (IPM), resistance management, and sustainable crop protection.
Bacillus thuringiensis var. kurstaki (BTK) 10% WSL
Biological Protection Against Early Caterpillar Threats
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Key Benefits
Selectively controls Lepidopteran caterpillars without affecting beneficial insects and pollinators.
Stops larval feeding within a short time, minimizing crop damage during critical growth stages.
Works through a unique biological mode of action, making it an effective resistance management tool.
Suitable for residue-conscious farming and export-oriented crop production.
Safe for applicators, livestock, and the environment when used as recommended.
Easily integrates into Integrated Pest Management (IPM) programs.
Method of Application & Dosage
| Crop(s) | Target / Benefit | Dosage & Application Guidelines |
|---|---|---|
| Pigeon pea | Pod borer (Helicoverpa armigera) | 1 liter /acre |
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Frequently Asked Questions (FAQS)
It is a biological insecticide used to control caterpillar pests in a wide range of agricultural and horticultural crops.
After ingestion by susceptible larvae, the Bt proteins disrupt the insect's midgut, causing feeding to stop and eventually leading to pest mortality.
It is effective against diamondback moth, cabbage caterpillar, fruit borers, leaf folders, tobacco caterpillar, and other susceptible lepidopteran larvae.
The water soluble liquid formulation ensures easy mixing, uniform spray coverage, and efficient application on crop foliage.
It provides targeted caterpillar control, helps conserve beneficial insects, leaves no harmful residues when used as directed, fits well into Integrated Pest Management (IPM) programs, and supports healthy crop growth.


















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