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Bonide Liquid Thuricide, 16 Oz.
Key item features
- Effective Control: Controls caterpillars, loopers, cabbage worms, hornworms, leaf folders, and leaf rollers.
- Wide Coverage: 1 pint treats up to 10,875 sq ft, making it suitable for large areas.
- Safe for Beneficial Insects: Won't harm beneficial insects, ensuring a balanced ecosystem.
- Active Ingredient: Contains BT kurstaki 0.8%, a powerful bacteria formulation.
- Versatile Application: Can be used on ornamentals, fruits, and vegetables.
- Harvest-Friendly: Can be applied to plants up to the day of harvest without concerns.
- Gypsy Moth Control: Labeled to control gypsy moth larvae on trees, best applied when caterpillars are small.
Specs
- Insect & pest repellent typeRepellent
- Pest typeBugs
- Coverage area0 sq ft
- Rec locationOutdoor
- Active ingredientsBacillus thuringiensis
- FormLiquid
Reviews summary
- : Controls caterpillars and worms that eat plant leaves.
- : Effective against caterpillars and other insects in early stages.
- : Mixing process is straightforward.
- : Works well on various types of trees and plants.
- : Has a subtle, natural fragrance.
- : Can be empathetic, but also inconsistent.
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About this item
Product details
This Bonide 803 Liquid Thuricide contains a formulation of bacteria. It can be used to control caterpillars, loopers, cabbage worms, hornworms, leaf folders and leaf rollers. This Thuricide insecticide contains the active ingredient BT kurstaki and doesn't harm beneficial insects. It can be used on ornamentals, fruits and vegetables and the 16 oz bottle treats up to 10,875 sq ft.
Bonide 803 Thuricide BT Insect Killer, 16 oz:- A liquid formulation of bacteria
- Controls caterpillars, loopers, cabbage worms, hornworms, leaf folders and leaf rollers
- 1 pint treats up to 10,875 sq ft
- Won't harm beneficial insects
- Active ingredient: BT kurstaki 0.8%
- Liquid insect killer can be applied to plants up to the day of harvest
- Labeled to control gypsy moth larvae on trees, best applied when caterpillars are small in size
- For use on ornamentals, fruits and vegetables
Directions
Instructions
Warranty
Warranty information
Ingredients
Active Ingredients
Bacillus thuringiensis
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Customer ratings & reviews
Reviews summary
- : Controls caterpillars and worms that eat plant leaves.
- : Effective against caterpillars and other insects in early stages.
- : Mixing process is straightforward.
- : Works well on various types of trees and plants.
- : Has a subtle, natural fragrance.
- : Can be empathetic, but also inconsistent.
Customer images






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Showing 1-3 of 60 reviews
Seller Verified Purchase
Very effective
I discovered that the caterpillars were going to get more of my Kale than I was. I consulted a local organic gardener who sells at our local farmer's market and he recommended BT. I have applied your product three times and now the Kale is just gorgeous and tasty. There are still cabbage white butterflies around so I don't feel guilty about the local population.
Seller Verified Purchase
Can't gardern without bT
This is one gardening product I can't live without. I've been using bT against cabbage worms for years. It's organic, totally effective and easy to use. My vegetables are organically grown, and I have far better success with cole crops than my friends who use chemical sprays.
Overall: ✅ Effective on pests ✅ Organic and garden
[This review was collected as part of a promotion.] I've been using Thuricide to help eliminate small garden pests, and it does a solid job. It's especially effective against caterpillars and other leaf-eating critters. I appreciate that it's organic, so I feel safer using it around edible plants and beneficial insects. One downside: the smell isn't great—it has a bit of a sour, funky odor, but it fades after application. It's a trade-off I'm willing to make for something that works and is environmentally friendly. Overall: ✅ Effective on pests ✅ Organic and garden-safe ❌ Smell could be better Would recommend if you're looking for a safer, natural pest control option.
