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Item #:
221231548
Bonide Captain Jack's Bacillus Thuringiensis BT, 32 oz
87% of respondents would recommend this to a friend
Item #:
221231548
€ 20
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Controls destructive worms & caterpillars in & around vegetable & flower gardens. Ready to Use spray is designed for organic gardening and can be used up to the day of harvest.
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What Stands Out
Organic Solution
Captain Jack's BT is an organic pest control option, making it safe for use around pets and children while effectively targeting harmful worms and caterpillars in gardens.
Ready-to-Use
This product comes in a convenient 32 oz. ready-to-use spray, simplifying application and ensuring immediate protection against caterpillar infestations without extensive preparation.
Targeted Control
Specifically formulated to combat caterpillars and worms, this product minimizes damage to plants while preserving beneficial insects, providing an environmentally friendly solution for gardeners.
Product Details
- Effective insect control for cabbage looper, hornworms, tent caterpillar, gypsy moth, bagworm, and more
- Safe for use on fruits, vegetables, shade trees, and ornamentals like broccoli, cauliflower, kale, eggplant, melons, tomatoes, and cabbage
- Does not harm beneficial insects like birds, earthworms, honeybees, and ladybugs
- Fast-acting formula that stops feeding in worms and caterpillars immediately, leading to their death within 2-3 days
- Contains the bacterium Bacillus thuringiensis, approved for organic gardening worldwide
- Comes in a 128 oz ready-to-use sprayer for convenient application
| Brand Name | Bonide |
| Unit Count | 32 Ounce |
| UPC | 037321008064 |
| Global Trade Identification Number | 00037321008064 |
| Included Components | Bonide Captain Jack's Bacillus Thuringiensis BT, 32 oz Ready-to-Use |
| Item Type Name | Bonide 8066 Captain Jack's Bacillus Thuringiensis BT Organic Worm & Caterpillar Control, 32 oz. Ready-to-Us - Quantity 1 |
| Manufacturer | Bonide Products LLC |
| Model Number | 8066A |
| Part Number | Bonide - 8066 |
| Item Form | Spray |
| Target Species | Insects |
| Item Weight | 2.3 pounds (1.04 kg) |
| Liquid Volume | 32 fluid ounces |
| Active Ingredients | Bacillus Thuringiensi,Lapidapteran Active Toxins |
| Brand | Bonide |
Who Should Buy?
-
Organic Gardeners
Ideal for those pursuing sustainable and organic gardening methods, without harsh chemicals to manage pests.
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Vegetable Growers
Perfect for protecting vegetables from common caterpillar pests, ensuring healthy, edible crops for consumption.
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Homeowners with Children
Safe for use in gardens where children play, as it targets specific pests without toxic effects.
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Non-Organic Farms
May not meet the pest control needs of enterprises relying on stronger chemical interventions for immediate results.
Product Description
Bonide Captain Jack's Bacillus Thuringiensis BT, 32 oz
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Customer Questions & Answers
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Question:
What pests does Bonide Captain Jacks Thuricide BT target?
Answer: Bonide Captain Jacks Thuricide BT is specifically designed to target soft-bodied insects such as worms and caterpillars in your home garden. This product leverages the natural properties of Bacillus thuringiensis, a bacterium that disrupts the feeding patterns of these pests once ingested. As a result, it’s particularly effective against pests like tomato hornworms, cabbage loopers, and fruit tree loopers. By using this bioinsecticide, gardeners can maintain healthy plants without harming beneficial insects, making it an ideal choice for organic gardening. -
Question:
Is Bonide Captain Jacks Thuricide BT safe for pets and children?
Answer: Yes, Bonide Captain Jacks Thuricide BT is considered safe for pets and children when used according to the instructions. Since it contains a naturally occurring bacterium, it does not pose a risk to humans or animals. However, it is always advisable to keep pets and children away during application until the area is dry. This ensures they do not come into contact with the product while it is still active. By following the application rules, you can effectively protect your garden while ensuring safety for your family and pets. -
Question:
How often should I apply Bonide Captain Jacks Thuricide BT?
Answer: The frequency of application with Bonide Captain Jacks Thuricide BT can vary depending on the severity of the pest issue. Generally, it is recommended to apply the product every 7-14 days while pests are actively feeding. For prevention, you could apply it every few weeks during the growing season. Always inspect your plants and reapply after rainfall or heavy watering, as this can wash away the product. By being consistent with your applications, you can enjoy a healthier garden with minimized pest activity. -
Question:
Can I use Bonide Captain Jacks Thuricide BT on vegetables and fruits?
Answer: Absolutely! Bonide Captain Jacks Thuricide BT is labeled for use on a wide variety of vegetables and fruits. It is particularly effective against pests that threaten crops like tomatoes, peppers, and cucumbers. The product is specially formulated to be safe to use on edible plants, making it a trusted choice for organic gardeners. Make sure to follow the recommended application guidelines for the specific plants you are treating, helping you to reap a bountiful harvest free of damaging pests. -
Question:
What is the active ingredient in Bonide Captain Jacks Thuricide BT?
Answer: The active ingredient in Bonide Captain Jacks Thuricide BT is Bacillus thuringiensis (Bt), a naturally occurring bacterium found in soil. This bacterium acts as a biological pesticide by producing toxins that specifically target certain insects when they ingest it. It works by disrupting their digestive systems, leading to their eventual demise. Utilizing Bt in your organic gardening practices offers a safe and effective means of controlling caterpillar and worm populations while preserving beneficial insects. -
Question:
How do I use the sprayer that comes with Bonide Captain Jacks Thuricide BT?
Answer: Using the sprayer that accompanies Bonide Captain Jacks Thuricide BT is straightforward. First, ensure that the nozzle is set to the desired spray pattern. Fill the tank with the product according to the instructions, making sure to shake it well before use. Aim the sprayer at the infested areas of your plants, covering both the tops and undersides of leaves where pests may hide. In addition to applying during peak pest activity, the sprayer allows for uniform distribution, optimizing effectiveness against worms and caterpillars. -
Question:
Is Bonide Captain Jacks Thuricide BT compatible with other pesticides?
Answer: Bonide Captain Jacks Thuricide BT can be compatible with certain other pesticides, but it's crucial to conduct a jar test before mixing. This means combining small amounts of the products in a jar to check for any adverse reactions. It's preferable to avoid mixing products unless they are specifically designed for combined use. Using Bonide Captain Jacks Thuricide BT alone can often provide the desired control of worms and caterpillars without the complications of chemical interactions. -
Question:
Can Bonide Captain Jacks Thuricide BT be used indoors?
Answer: While Bonide Captain Jacks Thuricide BT is intended primarily for outdoor use in home gardens, it can be utilized indoors in certain situations where plants are affected by worms or caterpillars. However, proper ventilation is paramount, and it's essential to avoid over-application. Ensure that affected indoor plants are kept away from pets and children during the application process. For optimal safety, using it outdoors or in a controlled greenhouse setting is generally recommended. -
Question:
What conditions are best for applying Bonide Captain Jacks Thuricide BT?
Answer: Bonide Captain Jacks Thuricide BT is most effective when applied during cooler temperatures in the early morning or late afternoon. This timing helps prevent evaporation and maintains product effectiveness. Avoid applying during extreme heat or direct sunlight, as this can diminish the potency of the bacteria. Additionally, applying when pests are actively feeding maximizes the likelihood of control. Scout your garden regularly to identify pest activity and time your applications accordingly to achieve optimal results. -
Question:
Where can I buy Bonide Captain Jacks Thuricide BT in Aland Islands?
Answer: You can purchase Bonide Captain Jacks Thuricide BT from Ubuy in Aland Islands. Ubuy offers a convenient online shopping experience and a range of gardening products, ensuring you can easily find and acquire Bonide Captain Jacks Thuricide BT for your organic gardening needs. They provide various delivery options and frequently update their selection to include the latest gardening supplies, making it simple for gardeners to obtain what they need for pest control.
Bonide Sprays 8066A Editorial Review
Bonide Captain Jack's Bacillus Thuringiensis BT, 32 oz | Ready-to-Use Spray, Worm & Caterpillar Control, For Organic Gardening is an excellent solution for dealing with troublesome caterpillars in your garden. Many users have shared their positive experiences, noting how quickly it eliminates caterpillars without harming beneficial insects like bees and butterflies. It effectively targets leaf-eating worms, yet requires thorough application, especially underneath leaves, and periodic reapplication after rain. While some have pointed out the product's strong odor as a drawback, the effectiveness in saving plants from pests such as squash borers and pickleworms makes it worth it. This makes it a must-have for organic gardening enthusiasts and those grappling with pest issues.
Customer Reviews & Ratings
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Pros
- Targets caterpillars without harming pollinators
- Effective for various plants and pests
- Easy application with spray bottle
- Helps save infested crops quickly
- Suitable for organic gardening
Cons
- The strong smell may be off-putting for some users
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
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Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
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Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
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Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
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Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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Top selling Bacillus Thuringiensis in Aland Islands
Last Updated on August 30, 2026
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Features & Benefits
- No effect on birds, earthworms or beneficial insects
- Kills worms and caterpillar stage insects
- Fast acting formula
- Organic gardening approved
- Designed for use on various crops and ornamentals
- Effective against numerous types of insects
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