• Safer's BTK Insecticide - 100 ML
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Product benefits

  • Targeted Support
  • Caterpillar Control
  • Stops Feeding Damage
  • Wide Plant Use
  • Easy Mixing
  • Beneficial Insect Safe
  • Organic Gardening Ready
  • All-Stage Support

This product may offer additional benefits beyond those listed.

Frequently purchased together

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Safer's BTK Insecticide - 100 ML

Vegetative Stage Flowering Stage Indoor Outdoor Foliar Application Insecticide
$20.13
$20.13
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Product benefits

  • Targeted Support
  • Caterpillar Control
  • Stops Feeding Damage
  • Wide Plant Use
  • Easy Mixing
  • Beneficial Insect Safe
  • Organic Gardening Ready
  • All-Stage Support

This product may offer additional benefits beyond those listed.

Description
Safer's BTK Insecticide is a biological insecticide concentrate for caterpillar control, designed to protect garden plants from destructive caterpillar activity. It’s a targeted caterpillar control insecticide for gardeners who want a focused solution for leaf-damaging larvae without broad, catch-all pest claims.

This btk insecticide is built around Bacillus thuringiensis subsp. kurstaki, strain ABTS-51, a well-known btk biological insecticide used for selective caterpillar management. Safer's BTK Insecticide is described as highly specific to some kinds of caterpillars, making it a practical choice when the problem is clearly caterpillars rather than a mixed pest situation. It targets common culprits such as cabbage worm, tomato hornworm, tent caterpillars, gypsy moth caterpillars, and leafrollers, along with other caterpillar pests that chew foliage and reduce plant vigor. It is not positioned as an option for aphids, so it’s best reserved for clearly identified caterpillar pressure.

A key benefit of this btk biological insecticide is how quickly it interrupts damage after caterpillars consume treated leaf tissue. Once exposure occurs, caterpillars stop eating within hours, and control typically follows within a few days, helping limit ongoing leaf loss. For timing expectations, Safer's BTK Insecticide is described as most effective when caterpillars are small and young, aligning with early detection and fast response. It also does not target adult moths, which helps set clear expectations for what this caterpillar killer concentrate is designed to address.

Safer's BTK Insecticide is suitable for use on vegetables, fruit, trees, and ornamentals, making it a versatile garden insect control concentrate for mixed plantings. This is a good fit for home gardeners and greenhouse growers who want a btk insecticide focused on cabbage worm and tomato hornworm scenarios, leafroller damage, and tent caterpillar outbreaks, with an active ingredient identified as Bacillus thuringiensis subsp. kurstaki, strain ABTS-51.

Product benefits: Vegetative Stage; Flowering Stage; Indoor; Outdoor; Foliar Application; Insecticide; Targeted Support; Caterpillar Control; Stops Feeding Damage; Wide Plant Use; Easy Mixing; Beneficial Insect Safe; Organic Gardening Ready; All-Stage Support.

Guaranteed analysis: Bacillus Thuringiensis Kurstaki: 10600.0 clu/mg.

Warnings & Safety
General Safety Precautions

Read and follow all instructions on the product label and any accompanying documentation before use. Keep out of reach of children and pets. Do not ingest. Avoid breathing vapours, mist, or dust that may be generated during handling or use.

Wear appropriate personal protective equipment (PPE), such as protective gloves, long sleeves, long pants and closed-toe footwear. When there is a risk of splashing or airborne particles, use safety glasses or other suitable eye and face protection.

First Aid – Skin Contact

IF ON SKIN OR HAIR: Remove contaminated clothing immediately. Rinse skin with clean water for several minutes, then wash with mild soap and water. If irritation or redness develops and persists, seek medical attention. Wash contaminated clothing before reuse.

First Aid – Eye Contact

IF IN EYES: Rinse cautiously with clean water for several minutes, keeping eyelids open. Remove contact lenses if present and easy to do. Continue rinsing. If irritation persists, obtain medical advice.

First Aid – Ingestion

IF SWALLOWED: Rinse mouth thoroughly with water. Do not induce vomiting unless instructed by a medical professional. Seek medical attention if you feel unwell.

First aid – Inhalation

IF INHALED: Move the person to fresh air and keep them comfortable for breathing. If coughing, breathing difficulty, dizziness or other symptoms occur, seek medical assistance.

Storage And Handling

Store this product in its original closed container, in a cool, dry and well-ventilated area. Protect from extreme temperatures and direct sunlight. Keep container tightly sealed when not in use.

Avoid release to drains, natural waterways or outdoor soil. Dispose of unused product and empty containers in accordance with local regulations and the directions on the label.

Important – Medical

If medical advice is needed, keep the product label or container available. Always follow the specific instructions and safety recommendations provided by the manufacturer. This safety notice is intended as general guidance and does not replace official label directions or documentation.

Pest & Disease Control Safety

Use this product only as directed on the product label. Pest and disease control products, including liquids, sprays, powders, granules, sticky traps, and traps, may cause irritation or other adverse effects if used incorrectly. Read the full product label before use and follow all precautions, application directions, placement directions, and restrictions.

Label & Manufacturer Directions

Always follow the official product label, package directions, and manufacturer safety information. Check the manufacturer website or official product documentation for the most complete and current usage, safety, storage, and disposal details. This notice is general guidance and does not replace the product label.

Application & Placement Safety

Apply, place, or install only as directed. Avoid contact with skin, eyes, and clothing. Avoid breathing spray mist, vapour, or dust. Do not use near food, drinks, uncovered water sources, or areas where children or pets may contact the product unless the label specifically allows it.

Powder, Granule & Dust Handling

When handling powders, granules, or dusty products, avoid creating or breathing dust. Pour carefully, keep containers closed when not in use, and wash hands after handling. Avoid touching your face, eyes, or mouth during use.

Liquid & Spray Handling

When handling liquids or sprays, avoid splashing and avoid breathing spray mist or vapour. Use in a well-ventilated area and keep the container tightly closed when not in use. Wash hands after handling and follow the product label for dilution, application, and cleanup directions.

Guaranteed Minimum Analysis
Bacillus Thuringiensis Kurstaki 10600.0 clu/mg

Frequently Asked Questions
What makes bacillus thuringiensis kurstaki uniquely effective compared to other natural pest-control methods?

Bacillus thuringiensis kurstaki is uniquely effective because it works through ingestion rather than contact, allowing it to target caterpillar larvae with precision while leaving plants, beneficial insects, and soil life completely unaffected. Its highly specific biological pathway sets it apart from broader methods and makes it one of the most environmentally selective tools available for protecting plant foliage.

Read the full guide

Safety & Technical Documents

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Product Comparison

Disclosures

General Safety Precautions General Safety Precautions •First Aid – Skin Contact First Aid – Skin Contact •First Aid – Eye Contact First Aid – Eye Contact •First Aid – Ingestion First Aid – Ingestion •First aid – Inhalation First aid – Inhalation •Storage And Handling Storage And Handling •Important – Medical Important – Medical •Pest & Disease Control Safety Pest & Disease Control Safety •Label & Manufacturer Directions Label & Manufacturer Directions •Application & Placement Safety Application & Placement Safety •Powder, Granule & Dust Handling Powder, Granule & Dust Handling •Liquid & Spray Handling Liquid & Spray Handling

Read and follow all instructions on the product label and any accompanying documentation before use. Keep out of reach of children and pets. Do not ingest. Avoid breathing vapours, mist, or dust that may be generated during handling or use.

Wear appropriate personal protective equipment (PPE), such as protective gloves, long sleeves, long pants and closed-toe footwear. When there is a risk of splashing or airborne particles, use safety glasses or other suitable eye and face protection.

First Aid – Skin Contact

IF ON SKIN OR HAIR: Remove contaminated clothing immediately. Rinse skin with clean water for several minutes, then wash with mild soap and water. If irritation or redness develops and persists, seek medical attention. Wash contaminated clothing before reuse.

First Aid – Eye Contact

IF IN EYES: Rinse cautiously with clean water for several minutes, keeping eyelids open. Remove contact lenses if present and easy to do. Continue rinsing. If irritation persists, obtain medical advice.

First Aid – Ingestion

IF SWALLOWED: Rinse mouth thoroughly with water. Do not induce vomiting unless instructed by a medical professional. Seek medical attention if you feel unwell.

First aid – Inhalation

IF INHALED: Move the person to fresh air and keep them comfortable for breathing. If coughing, breathing difficulty, dizziness or other symptoms occur, seek medical assistance.

Storage And Handling

Store this product in its original closed container, in a cool, dry and well-ventilated area. Protect from extreme temperatures and direct sunlight. Keep container tightly sealed when not in use.

Avoid release to drains, natural waterways or outdoor soil. Dispose of unused product and empty containers in accordance with local regulations and the directions on the label.

Important – Medical

If medical advice is needed, keep the product label or container available. Always follow the specific instructions and safety recommendations provided by the manufacturer. This safety notice is intended as general guidance and does not replace official label directions or documentation.

Pest & Disease Control Safety

Use this product only as directed on the product label. Pest and disease control products, including liquids, sprays, powders, granules, sticky traps, and traps, may cause irritation or other adverse effects if used incorrectly. Read the full product label before use and follow all precautions, application directions, placement directions, and restrictions.

Label & Manufacturer Directions

Always follow the official product label, package directions, and manufacturer safety information. Check the manufacturer website or official product documentation for the most complete and current usage, safety, storage, and disposal details. This notice is general guidance and does not replace the product label.

Application & Placement Safety

Apply, place, or install only as directed. Avoid contact with skin, eyes, and clothing. Avoid breathing spray mist, vapour, or dust. Do not use near food, drinks, uncovered water sources, or areas where children or pets may contact the product unless the label specifically allows it.

Powder, Granule & Dust Handling

When handling powders, granules, or dusty products, avoid creating or breathing dust. Pour carefully, keep containers closed when not in use, and wash hands after handling. Avoid touching your face, eyes, or mouth during use.

Liquid & Spray Handling

When handling liquids or sprays, avoid splashing and avoid breathing spray mist or vapour. Use in a well-ventilated area and keep the container tightly closed when not in use. Wash hands after handling and follow the product label for dilution, application, and cleanup directions.