Basic Information
Registration Number:
073-SENASA-PBA-ACBMCategory:
MicrobialRegistrant:
Crops ProtectionManufacturer
Crops ProtectionProduct Overview
Btk-Crops is a biological insecticide formulated with Bacillus thuringiensis subsp. kurstaki (Btk), a naturally occurring soil bacterium widely used for the control of caterpillar pests in a wide range of crops. When ingested by target larvae, the crystalline proteins (Cry toxins) produced by Btk disrupt the insect’s digestive system, leading to rapid feeding cessation and pest death. This highly specific mode of action targets only lepidopteran larvae, leaving beneficial insects, pollinators, and other non-target organisms unharmed. Btk-Crops is an ideal tool for growers seeking effective pest control compatible with integrated pest management (IPM) strategies, organic production systems, and environmentally responsible farming practices.
Key benefits
- Controls a wide range of caterpillar pests in vegetables, fruit, and field crops
- Highly selective — safe for beneficial insects, pollinators, and natural enemies
- Compatible with integrated pest management programmes
- Leaves no harmful chemical residues on crops or in the environment
- Reduces the risk of pest resistance when used in rotation with other control methods
- Easy to apply and suitable for repeated use throughout the growing season
Active ingredient information
Bacillus thuringiensis var. kurstaki — is a bacteria-based microbial insecticide formulation. Once ingested by the target species, it produces toxins that disrupt their digestive process, thus leading to effective population control.

Want to know more about microbials?
Microbials contain microscopic living organisms or their by-products as the main active ingredient. In our beginner's guide, you can learn about these products: specific microbial examples, how they are applied, how they can control pests and diseases, and more.

Calculate doses and concentrations with "Crop Sprayer"
The Crop Sprayer app helps growers and agricultural advisors calculate the correct amount of product to use. It can calculate:
- Total amount of product required
- Total product concentrate needed in the spray tank
- Total number of spray tanks required
- Adjustments for different size sprayers
PLEASE NOTE: Crop Sprayer is not currently available on iOS devices
Disclaimer
CABI cannot be held responsible for any inaccuracies in the data and information. Anyone acting or relying on such data and information does so entirely at their own risk. CABI sources data from national regulators with permissions and, on occasion, enhances the information presented with input from manufacturers and/or product registration holders.