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Bonide 803 Thuricide BT Insect Killer, 16-Ounce

4.6 out of 5 stars 165 customer reviews
| 46 answered questions

List Price: $17.07
Price: $12.30 & FREE Shipping on orders over $49. Details
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1 Pint
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  • 16 oz., Concentrate, Thuricide BT Killer
  • Contains .8% Kurstaki
  • Certified Organic Thuricide is a liquid formulation of bacteria, Bacillus Thuringiensis (Bt), which is specific to leaf eating caterpillars
  • Controls caterpillars, loppers, cabbage worms, and leaf rollers
  • Insects stop feeding, and die within 2 to 3 days of consuming product
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$12.30 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Bonide 803 Thuricide BT Insect Killer, 16-Ounce
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Technical Details


Product Description

Size: 1 Pint

16 oz., Concentrate, Thuricide BT Killer. Contains .8% Kurstaki. Certified Organic Thuricide is a liquid formulation of bacteria, Bacillus Thuringiensis (Bt), which is specific to leaf eating caterpillars. Controls caterpillars, loppers, cabbage worms, and leaf rollers. Pint treats 10,875 square feet of coverage. Insects stop feeding, and die within 2 to 3 days of consuming product.

Product Information

Size:1 Pint
Product Dimensions 5 x 2 x 9 inches
Item Weight 1 pounds
Shipping Weight 1.3 pounds (View shipping rates and policies)
Manufacturer Arett Sales - LG
ASIN B001D1H6SE
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Item model number 803
Customer Reviews
4.6 out of 5 stars 165 customer reviews

4.6 out of 5 stars
Best Sellers Rank #1,574 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
#158 in Patio, Lawn & Garden > Gardening > Pest Control > Repellents

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Important Information

Ingredients

Bt Kurstaki 0.80% (liquid Formulation Of Bacteria).


Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Size: 1 Pint Verified Purchase
This is my product of choice for catipillars and spring/fall canker worms. Using a tree sprayer on a hose I can spray the whole yard and trees to kill every catipillar. I also use it in a small a small sprayer on my tomatoes, squash and clues to keep the catipillars at bay. I recommend this and the Captain Jacks Deadbug for maintaining your yard/garden/fruit trees. Alternate these two products every three weeks and you can get away with using the stronger non-organic sprays less frequently. This brand (Bonide) of BT is more concentrated than other brands I have tried so it lasts much longer.
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Size: 1 Pint Verified Purchase
Started using it because its the only thing that kills potato bugs (larval only). They brush their teeth with the regular over the counter insecticides.

Started using it on lots of other stuff because of the low toxicity to humans. Works great for corn borers, tomato worms, tent caterpillars, gypsy moth caterpillars,....
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Size: 1 Pint Verified Purchase
Thuricide is 100% effective in killing caterpillars. A "must-have" item for the organic gardener. I use this beginning in August when the butterflies start buzzing my vegetable garden (tomato, peppers, escallion,cucumber). I apply in the early morning. It takes about 3-4 days after application to kill caterpillars. I do preventative applications very 21 days.
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Size: 1 Pint Verified Purchase
I originally purchased this because it was recommended by several state extension services as the only means of getting rid of grape leaf skeletonizers. If you have skeletonizers attacking your grape vines, this is the stuff to use unless you have the patience to hand pick them off which seems to be the only other way to effectively manage them. I've used this for two seasons and recommend it to friends who have skeletonizer problems. Mixes with water and sprays on. Kills the caterpillars within a day or so no matter how big they've gotten.
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Size: 1 Pint
I cannot say enough good things about this product. We did buy it right here on Amazon with the free shipping (on my boyfriend's account so it won't show as a confirmed purchase on my account. He does the paying. I do the reviewing.) It singlehandedly saved our evergreens. We had a nasty infestation of bagworms on them. I didn't know about it but my friend who does landscaping for a living with her husband showed me. By that time, I am guessing our trees were getting eaten alive for at least two or three years. There were bagworm cocoons hanging by the hundreds. Some branches were already stripped bare of needles.

So I bought this and started spraying it last year in early May. My friends husband, the landscaper, drove by when we were spraying, which was a weird coincidence since he lives a few miles up) and told us not to bother spraying so soon. I don't care. I wasn't taking any chances. My boyfriend and I looked at each other when he drove away and said, whatever, let's just keep spraying and not take chances. We sprayed twice in May and then several more times over the course of the summer. This year, I have only found two little lonely cocoons hanging out of all of our evergreens (I think we have 7 or so evergreens). I also sprayed our walnut/hickory hybrid tree, which had those web insects (forget what they are called) and I sprayed the mulberrries by the mailbox that also had the web things.

I surreptitiously sprayed my neighbor's evergreens while he was at work and couldn't object. His infestation was still very minor. Sometimes you have to do things for people's own good and they don't have to know. Sort of like sneaking vegetables into your kid's food.
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Size: 1 Pint Verified Purchase
Had a green caterpillar infestation with my petunias. This got rid of the caterpillars after two dosages. Does smell a bit since it is bacteria but its easy to use and worked so I'm happy. And it will last a good long time since it doesn't require much for each dosage.
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Size: 1 Pint Verified Purchase
Having recently moved from CA to TX, we were unsure of the pests in our greenhouse garden this season. Most deadly were the Tomato Hornworm. They took over and moved in big-time on our canning type tomatoes and pepper crop. I tired of picking each one off, so I tried Bonide Products 803 Thuricide BT insect killer. When you spray this bacteria onto the plant, it makes the leaves and stems deadly to the pest consuming them. Label indicates within 3 days the worms will be dead. Within 24 hours the brilliantly colored green hornworms turned brown/black and died on the plants. Works beautifully! Will use this product earlier in the season next year so the worms don't get a foothold on the crop. Highly recommend this product to all with worms taking over their garden.
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Size: 1 Pint Verified Purchase
Some bug had been trashing my bougainvillea. The leaves and branch tips were severely chewed up and I had almost no blossoms. I wasn't sure if the same bug was chewing on my young orange tree, but I sprayed both with a solution of this product and within days, I had new healthy growth. Typically, the new growth was immediately eaten by the bugs. This continues to work very well--I have sprayed both again after 3 weeks. Now at 2 months out, I have no bugs and both plants are thriving. So glad I came across this great product.
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