
Key Features
Special considerations
Growing and Care Instructions
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Fertilizing
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Watering
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Light Requirements
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Thuricide® BT Caterpillar Control – OMRI-Approved Organic Pest Solution
Protect your garden the natural way with Thuricide® BT, an OMRI-approved caterpillar and worm control used by organic growers nationwide. This liquid Bacillus thuringiensis formula targets destructive lepidoptera larvae while remaining safe for people, pets, beneficial insects, and pollinators.
Thuricide® BT is a biological insecticide based on the bacterium Bacillus thuringiensis (var. kurstaki), also known as BT. It is specifically designed to control caterpillars and butterfly or moth larvae that feed on plant leaves.
CONTAINS: Bacillus Thuringiensis in liquid form
What It Controls
Fast and effective against common caterpillar pests, including:
- Cabbage looper
- Imported cabbageworm
- Tobacco hornworm
- Orange dog (swallowtail Caterpillar)
- Rindworm
- Other lepidoptera larvae & chewing worms
Once ingested, BT affects only caterpillars—not bees, birds, or humans.
Where to Use
Thuricide® BT is labeled for use on:
- Citrus
- Vegetables (including leafy greens, brassicas, tomatoes, etc.)
- Nut trees
- Shrubs
- Flowering plants
- Ornamental trees
- Tobacco
- Home gardens & landscape beds
Why Gardeners Love Thuricide® BT
- OMRI Approved for organic gardening
- Low toxicity to humans and animals
- Targets only caterpillars and worms
- Same trusted active ingredient as Dipel®
- Won’t harm ladybugs, lacewings, or beneficial insects
- Safe to use up to the day of harvest
Application & Mixing Rates
Mixing Rate:
Use 2–4 teaspoons per gallon of water depending on pest pressure.
Application:
- Mix thoroughly with water
- Add a spreader-sticker for improved coverage
- Apply as a complete cover spray to all plant surfaces
- Reapply as needed, especially after rain
For best results, spray when caterpillars are young and actively feeding.
PACKED: 1 x 8 oz. – #13021