Thuricide Bacillus Thuringiensis Concentrate
Best organic solution for gardeners managing caterpillar and moth larvae infestations.
Bonide Thuricide Bacillus Thuringiensis (BT) Concentrate offers a powerful, biological solution for controlling moth larvae, including caterpillars and gypsy moths. This OMRI Listed formulation uses naturally occurring bacteria to target specific pests, ensuring beneficial insects remain unharmed. It's safe for use on a variety of plants, including vegetables, fruits, ornamentals, and shade trees, with the flexibility of application up to the day of harvest. A single pint effectively treats over 10,000 square feet, providing efficient and targeted pest management for your garden.
$16.95
Owner Satisfaction
4.6
/ 5
Category Rank
355
/ 1680
#355 in Pesticides
Price vs Category Average
-62%
Below average
Active Ingredient
15.0
/ Bacillus thuringiensis (BT) subspecies kurstaki %
Who it's for
- Pet owners and families prioritizing safe, low-impact garden treatments
- Eco-conscious gardeners protecting pollinators and beneficial insects
- Organic growers needing compliant, natural pest management solutions
Who should skip it
- Gardeners dealing with aphids, mites, or non-caterpillar infestations
- Busy growers unable to manage frequent, thorough foliage applications
- Impatience-prone gardeners seeking an immediate, total pest knockdown
Performance breakdown
Organic Compliance
OMRI listing ensures full compatibility with strict organic gardening standards.
Target Specificity
Biological action eliminates destructive larvae while sparing essential beneficial insects.
Harvest Flexibility
Zero-day pre-harvest interval allows for worry-free application on edible crops.
Coverage Efficiency
High concentration yields impressive square footage from a single pint bottle.
Environmental Persistence
Rapid sunlight degradation necessitates frequent reapplication during heavy pest pressure.
Application Convenience
Requires manual mixing and a separate sprayer for effective garden distribution.
Key Specs
Active Ingredient
Bacillus thuringiensis (BT) subspecies kurstaki 15.0%
Container Size
16 oz
Yield
One pint treats up to 10,875 sq. ft.
EPA Reg. No.
70051-104
Application Rate
1-4 tsp./ gal of water
Formulation
Liquid Concentrate (Suspension Concentrate)
Use Sites
Shade Trees, Ornamentals, Vegetables, Fruits, Nut Crops
Organic
Yes, OMRI Listed
Features
- Controls moth larvae and leaf-eating worms
- Safe for beneficial insects
- OMRI Listed for organic gardening
- Apply up to day of harvest
- Versatile use on trees and crops
- Easy to mix and apply
- Degrades in sunlight within a week
What customers say
Customers consistently praise Bonide Thuricide for its exceptional reliability in eliminating destructive caterpillars and loopers without harming beneficial pollinators. Gardeners find the concentrate remarkably easy to mix and apply, making pest control straightforward even for beginners. The sentiment highlights its targeted effectiveness, offering peace of mind to those maintaining organic gardens. This product is viewed as a highly valuable and essential tool for protecting vegetables and ornamentals quickly and efficiently.
Know before you buy
Yes, it is safe for use on vegetables, fruits, and nut crops. Because it is OMRI Listed for organic gardening, you can apply it up to the day of harvest.
No, Thuricide is specifically formulated to target moth larvae and leaf-eating worms. It is safe for beneficial insects like bees and ladybugs when used as directed.
The active ingredient degrades in sunlight within about a week. You should reapply as needed based on pest activity, keeping in mind that it is not rain-resistant and will need to be reapplied after rainfall.
It is effective against various moth larvae and leaf-eating worms, including caterpillars, cabbageworms, hornworms, loopers, leafrollers, webworms, tent caterpillars, and gypsy moth larvae.
No, this product is not labeled as pet or child safe. You should keep pets and children out of the treated area until the spray has completely dried.
The application rate is 1 to 4 teaspoons per gallon of water. Always refer to the product label for specific dilution instructions based on the type of plant or pest you are targeting.
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$17