---
product_id: 6946046
title: "Thuricide BT Concentrate, 16 oz Ready-to-Mix Solution for Caterpillar, Worm and Moth Control in Home Garden"
brand: "bonide"
price: "€ 38.54"
currency: EUR
in_stock: true
reviews_count: 5
category: "Bonide"
url: https://www.desertcart.pt/products/6946046-thuricide-bt-concentrate-16-oz-ready-to-mix-solution-caterpillar
store_origin: PT
region: Portugal
---

# Safe for beneficial insects & pollinators Targets caterpillars & worms precisely Organic, eco-friendly Bt bacterium formula Thuricide BT Concentrate, 16 oz Ready-to-Mix Solution for Caterpillar, Worm and Moth Control in Home Garden

**Brand:** bonide
**Price:** € 38.54
**Availability:** ✅ In Stock

## Summary

> 🌱 Defend your garden organically—because your plants deserve VIP protection!

## Quick Answers

- **What is this?** Thuricide BT Concentrate, 16 oz Ready-to-Mix Solution for Caterpillar, Worm and Moth Control in Home Garden by bonide
- **How much does it cost?** € 38.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/6946046-thuricide-bt-concentrate-16-oz-ready-to-mix-solution-caterpillar)

## Best For

- bonide enthusiasts

## Why This Product

- Trusted bonide brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Value:** 16 oz concentrate provides multiple seasons of powerful pest control when stored properly
- • **Organic & Ready-to-Mix:** Certified organic Bt concentrate, easy to dilute and apply for targeted garden defense
- • **Precision Pest Control:** Kills destructive caterpillars & worms within 2-3 days of ingestion
- • **Versatile Garden Protector:** Effective on a wide range of plants including tomatoes, kale, broccoli, and ornamentals
- • **Pollinator-Friendly Formula:** Harmless to honeybees, ladybugs, birds, and earthworms—protect your garden’s ecosystem

## Overview

Thuricide BT Concentrate is a 16 oz ready-to-mix organic insecticide featuring Bacillus thuringiensis, a proven bacterium that targets caterpillars and worms without harming beneficial insects or wildlife. Ideal for vegetables, fruits, and ornamentals, it offers fast-acting, eco-friendly pest control that fits seamlessly into sustainable gardening routines.

## Description

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. Has no effect on birds, earthworms or beneficial insects such as honeybees & ladybugs.

Review: Great for tomato horn worms - Works great on the pesky Tomato worms and squash bugs. Just spray late or early enough that you don't harm friendly pollinators. Came with measuring cup as well. Will buy again.
Review: Amazing 3-year supply - I bought a 16 ounce bottle of this Thuricide BT, kept it in the fridge, and used it for three years to keep the green worms off of my broccoli and kale. Each year, I had to mix it a little bit stronger. Now, at the end of the 3rd year, it’s still working, but I plan to buy a new bottle next spring. This stuff is amazing. For years, I tried to do organic gardening with diatomaceous earth. BT works 1000 times better. I even had pretty good success spraying my apple tree with it. If I spray the apples well every week or two and after each heavy rain, they didn’t get worms. I injected it with a syringe into the stalks of my zucchini and was able to beat the zucchini stock borers.

## Features

- Protect your oasis with Captain Jack's Bt Thuricide Concentrate; this product controls cabbage looper, hornworms, tent caterpillars and more
- Protects fruits, vegetables, shade trees and ornamentals; designed for use on broccoli, cauliflower, kale, mustard greens, eggplant, pepper, melons, tomatoes, cabbage, and more
- Kills worms and caterpillar stage insects while causing no harm to birds, earthworms, or beneficial insects, such as honeybees and ladybugs; this product kills by ingestion, after ingesting, bugs immediately stop feeding and will die within 2-3 days
- Active ingredient of the product is a strain of the bacterium bacillus thuringiensis, which is a leading insecticide used worldwide; approved for organic gardening
- This product arrives conveniently ready-to-mix with water; to use, mix with water according to label instructions and apply thoroughly to affected plants when worms or caterpillars are first noticed; for full use instructions please see product label

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001D1H6SE |
| Best Sellers Rank | #23,263 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #95 in Insect & Pest Repellent Spray Concentrates |
| Brand | Bonide |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,381) |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00037321008033 |
| Is Discontinued By Manufacturer | No |
| Item Form | Spray |
| Item Weight | 1.28 pounds |
| Item model number | 803 |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | Arett Sales - LG |
| Product Dimensions | 2.13 x 4 x 6.75 inches |
| Target Species | Worm & Caterpillar |
| UPC | 037321008033 |

## Product Details

- **Brand:** Bonide
- **Item Form:** Spray
- **Item Weight:** 1.28 Pounds
- **Liquid Volume:** 16 Fluid Ounces
- **Target Species:** Worm & Caterpillar

## Images

![Thuricide BT Concentrate, 16 oz Ready-to-Mix Solution for Caterpillar, Worm and Moth Control in Home Garden - Image 1](https://m.media-amazon.com/images/I/6134Ws8Qr0L.jpg)

## Questions & Answers

**Q: Is this product organic?**
A: Yes. It's even in the product description. It's basically a naturally occurring bacteria that kills most caterpillars. You dilute the concentrate in the bottle and spray it on plants. When caterpillars eat the leaves, the ingest the bacteria which then kills them. From the product description:"Certified Organic Thuricide is a liquid formulation of bacteria, Bacillus Thuringiensis (Bt), which is specific to leaf eating caterpillars."

**Q: Does it kill thrips?**
A: Yes people us BT to kill Thrips.

**Q: Does it work for Gnats**
A: No.  This solution contains Bacillus thuringiensis kurstaki, which is a caterpillar insecticide.  Bacillus thuringiensis israelensis is the variety that is effective in controlling fungus gnats.

**Q: How long is the shelf life?**
A: Not as long as traditional/non-natural insecticides, generally 2-3 years.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for tomato horn worms
*by L***E on June 21, 2025*

Works great on the pesky Tomato worms and squash bugs. Just spray late or early enough that you don't harm friendly pollinators. Came with measuring cup as well. Will buy again.

### ⭐⭐⭐⭐⭐ Amazing 3-year supply
*by E***E on October 11, 2023*

I bought a 16 ounce bottle of this Thuricide BT, kept it in the fridge, and used it for three years to keep the green worms off of my broccoli and kale. Each year, I had to mix it a little bit stronger. Now, at the end of the 3rd year, it’s still working, but I plan to buy a new bottle next spring. This stuff is amazing. For years, I tried to do organic gardening with diatomaceous earth. BT works 1000 times better. I even had pretty good success spraying my apple tree with it. If I spray the apples well every week or two and after each heavy rain, they didn’t get worms. I injected it with a syringe into the stalks of my zucchini and was able to beat the zucchini stock borers.

### ⭐⭐⭐⭐⭐ Hornworms won’t stand a chance!
*by J***N on June 20, 2025*

Works great! Sprayed on tomato plants to fight off the annoying hornworms trying to invade. About two days later any hornworms on the plants had turned brown and died.

## Frequently Bought Together

- Bonide Thuricide BT Concentrate, 16 oz Ready-to-Mix Solution for Caterpillar, Worm and Moth Control in Home Garden
- Bonide Captain Jack's Deadbug Brew, 16 oz Concentrate Outdoor Insecticide and Mite Killer for Organic Gardening
- Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.pt/products/6946046-thuricide-bt-concentrate-16-oz-ready-to-mix-solution-caterpillar](https://www.desertcart.pt/products/6946046-thuricide-bt-concentrate-16-oz-ready-to-mix-solution-caterpillar)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-08*