---
product_id: 22976681
title: "Thuricide BT Caterpillar Control, 16oz - Pint"
brand: "southern ag"
price: "350 kr"
currency: DKK
in_stock: true
reviews_count: 9
category: "Southern Ag"
url: https://www.desertcart.dk/products/22976681-thuricide-bt-caterpillar-control-16oz-pint
store_origin: DK
region: Denmark
---

# OMRI certified organic-safe targets caterpillars & bagworms 16oz concentrated formula Thuricide BT Caterpillar Control, 16oz - Pint

**Brand:** southern ag
**Price:** 350 kr
**Availability:** ✅ In Stock

## Summary

> 🌿 Defend your garden like a pro—because your plants deserve the best!

## Quick Answers

- **What is this?** Thuricide BT Caterpillar Control, 16oz - Pint by southern ag
- **How much does it cost?** 350 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/22976681-thuricide-bt-caterpillar-control-16oz-pint)

## Best For

- southern ag enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Thousands:** Highly rated with 4.6 stars and thousands of satisfied gardeners who refuse to lose their foliage.
- • **Concentrated 16oz Size:** Multiple applications from one bottle keep your garden protected all season long.
- • **Safe for Edibles & Pets:** Use confidently on vegetables, fruits, and around pets with very low human toxicity.
- • **Eco-Friendly & OMRI Certified:** Certified for organic gardening, aligning with sustainable and responsible pest management.
- • **Powerful Organic Pest Control:** Harnesses Bacillus Thuringiensis for targeted caterpillar elimination without harming beneficial insects.

## Overview

Southern Ag Thuricide BT Caterpillar Control is a 16oz concentrated liquid formula using Bacillus Thuringiensis Kurstaki strain to selectively target caterpillars and bagworms. OMRI certified for organic use, it’s safe on all plants, vegetables, and edible crops with very low toxicity to humans and pets. Trusted by thousands with a 4.6-star rating, it offers effective, eco-friendly pest control that keeps your garden thriving without collateral damage.

## Description

Southern Ag Thuricide BT Caterpillar Control, 16oz - Pint

Review: Absolute Lifesaver for Vegetable Gardens—Stops Caterpillars Cold Without Harming Bees - ⭐️⭐️⭐️⭐️⭐️ Absolute Lifesaver for Vegetable Gardens—Stops Caterpillars Cold Without Harming Bees! If you are watching your hard work get chewed to pieces by worms, loopers, or hornworms, do not panic and reach for harsh chemical sprays. I bought this Southern Ag Thuricide BT after a massive wave of hornworms completely stripped my tomato plants overnight, and it completely turned the battle around. It is a highly effective, natural bacterial solution that strikes the perfect balance between aggressively target-killing pests and being completely safe for beneficial insects. Here is my honest breakdown after treating my backyard garden. The Pros The biological targeting is incredibly precise. The active ingredient, Bacillus thuringiensis, only targets the digestive systems of caterpillars and worms that actively eat your treated leaves, meaning it will not harm honeybees, ladybugs, birds, or earthworms. A little bit goes an incredibly long way. The liquid concentrate is highly potent, requiring only one to two tablespoons per gallon of water, which makes a single 16-ounce bottle last for multiple growing seasons. It leaves absolutely no chemical residue on your food. Because it is a natural, soil-borne bacterium, it breaks down quickly in sunlight, allowing you to safely spray your vegetables right up to the very day of harvest. It acts remarkably fast once ingested. The caterpillars stop eating almost immediately after swallowing a treated leaf, meaning your plants are safe from further chewing damage even while the pests take a couple of days to fully perish. The Cons / Things to Know It requires strategic timing for the best results. Because sunlight breaks down the active bacteria over time, you need to spray your plants in the late afternoon or early evening so the caterpillars can consume it in the dark before the morning sun weakens it. It must be eaten to work. It is not a contact killer, so simply spraying a caterpillar directly will not do anything. You have to ensure thorough coverage on both the tops and bottoms of the leaves so they ingest it when they take their next bite. Final Verdict This is a premium-grade organic pest control solution at an unbeatable price point. Whether you are dealing with hornworms on tomatoes, cabbage loopers on broccoli, or bagworms on ornamental shrubs, this stuff holds up beautifully. I will definitely keep a bottle on hand every spring!
Review: Works on Collard catapillers! - My collards were beautiful. Overnight, I looked at my collards and they had great big holes in each leaf! My husband told me to order Thuricide BT Caterpillar Control. Worked perfectly! Reasonable pricing!

## Features

- Size: 16 OZ
- Thuricide BT Caterpillar Control concentrate is used by organic gardeners and is made from bacteria that is toxic to listed pests.
- Safe to use on all plants, vegetables and edible crops.
- Very low toxicity to humans and pets.
- For large quantity discount consideration or to request a mixed multi-pack, please message us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004QJ33B4 |
| Active Ingredients | Bacillus Thuringiensis Subsp,Kurstaki Strain Sa-12 Solids,Spores,Lepidopteran Active Toxins |
| Best Sellers Rank | #2,138 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #13 in Insect & Pest Repellent Spray Concentrates |
| Brand | Southern Ag |
| Brand Name | Southern Ag |
| Customer Reviews | 4.6 out of 5 stars 3,667 Reviews |
| Included Components | 1 bottle |
| Item Form | Liquid |
| Item Type Name | Caterpillar Control |
| Item Weight | 9.9 Ounces |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | Southern Ag |
| Model Number | 13022 |
| Part Number | 13022 |
| Specification Met | OMRI |
| Target Species | Caterpillar |
| UPC | 051538130226 |

## Product Details

- **Active Ingredients:** Bacillus Thuringiensis Subsp,Kurstaki Strain Sa-12 Solids,Spores,Lepidopteran Active Toxins
- **Brand:** Southern Ag
- **Item Form:** Liquid
- **Item Weight:** 9.9 Ounces
- **Liquid Volume:** 16 Fluid Ounces

## Images

![Thuricide BT Caterpillar Control, 16oz - Pint - Image 1](https://m.media-amazon.com/images/I/713gOaX04zL.jpg)
![Thuricide BT Caterpillar Control, 16oz - Pint - Image 2](https://m.media-amazon.com/images/I/713OkWDRdWL.jpg)

## Questions & Answers

**Q: If i have cabbage aphids on my broccoli plants and i have sprayed bt, will it kill the aphids when they eat the leaves?**
A: All 4 of the current answers are nonsense.  It kills caterpillars and worms and the moth or butterfly eggs which produce the caterpillars.  It is harmlees to other types of insects and harmless to humans.  You CAN spray this on edible vegetables.  It is a bacteria and no more harmful to humans than acidophilus in yogurt.  Search [organic spray for aphids].  I found a product called Organicide which is safe for bees, ladybugs (they eat aphids) and butterflys.  It contains SESAME OIL as its active ingredient.  Neem oil will control aphids and many other pests, molds, mildews and other fungi.  However, Neem Oil has a nasty taste and smell.  I wouldn't recommend spraying the actual florettes.

**Q: Can this product be used as preventative measure and how often? Thank you!**
A: Thuricide is based on a bacteria (or group of bacteria) that infect a variety of caterpillars.   It takes 4 days for the caterpillars to die from the caterpillar, so reapplying less than 4 days is a waste.

This is my 1st year with Thuricide.  I found one large Tabacco Hook Worm on tomatoes.  Applied Thuricide and never saw any more, live or dead.  I applied more about 10 days later (there was a break in the daily rain), and again in about another 14 days.  Never saw more caterpillars.  So I quit applications.

Just my observations.  Not a study.

**Q: does it kill beneficial bugs and worms**
A: It kills caterpillars,  some caterpillars grow up to be beautiful beneficial butterflies and others crop pest moths.  Spray only on plants
You want to protect and spray carefully.

**Q: will it kill army worms**
A: Yes, it will. It may take up to 4 days after application, and make sure there is no rain or sprinklers to wash it off or you'll have to reapply. The key is to make sure you are applying to the leaves, not necessarily the ground or the army worms. The formula must be on their food source so it can get into their digestive system. It basically kills from the inside out.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Absolute Lifesaver for Vegetable Gardens—Stops Caterpillars Cold Without Harming Bees
*by G***R on May 26, 2026*

⭐️⭐️⭐️⭐️⭐️ Absolute Lifesaver for Vegetable Gardens—Stops Caterpillars Cold Without Harming Bees! If you are watching your hard work get chewed to pieces by worms, loopers, or hornworms, do not panic and reach for harsh chemical sprays. I bought this Southern Ag Thuricide BT after a massive wave of hornworms completely stripped my tomato plants overnight, and it completely turned the battle around. It is a highly effective, natural bacterial solution that strikes the perfect balance between aggressively target-killing pests and being completely safe for beneficial insects. Here is my honest breakdown after treating my backyard garden. The Pros The biological targeting is incredibly precise. The active ingredient, Bacillus thuringiensis, only targets the digestive systems of caterpillars and worms that actively eat your treated leaves, meaning it will not harm honeybees, ladybugs, birds, or earthworms. A little bit goes an incredibly long way. The liquid concentrate is highly potent, requiring only one to two tablespoons per gallon of water, which makes a single 16-ounce bottle last for multiple growing seasons. It leaves absolutely no chemical residue on your food. Because it is a natural, soil-borne bacterium, it breaks down quickly in sunlight, allowing you to safely spray your vegetables right up to the very day of harvest. It acts remarkably fast once ingested. The caterpillars stop eating almost immediately after swallowing a treated leaf, meaning your plants are safe from further chewing damage even while the pests take a couple of days to fully perish. The Cons / Things to Know It requires strategic timing for the best results. Because sunlight breaks down the active bacteria over time, you need to spray your plants in the late afternoon or early evening so the caterpillars can consume it in the dark before the morning sun weakens it. It must be eaten to work. It is not a contact killer, so simply spraying a caterpillar directly will not do anything. You have to ensure thorough coverage on both the tops and bottoms of the leaves so they ingest it when they take their next bite. Final Verdict This is a premium-grade organic pest control solution at an unbeatable price point. Whether you are dealing with hornworms on tomatoes, cabbage loopers on broccoli, or bagworms on ornamental shrubs, this stuff holds up beautifully. I will definitely keep a bottle on hand every spring!

### ⭐⭐⭐⭐⭐ Works on Collard catapillers!
*by B***E on May 25, 2026*

My collards were beautiful. Overnight, I looked at my collards and they had great big holes in each leaf! My husband told me to order Thuricide BT Caterpillar Control. Worked perfectly! Reasonable pricing!

### ⭐⭐⭐⭐⭐ No more bagworms!
*by J***E on January 23, 2025*

My Eastern Red Cedar is a favorite of bagworms. There were no problems until some nitwits cutting down a nearby Boxelder Maple dumped the huge stumps right next to the Cedar in my front yard, and left them there for several days. The damage to my lawn was bad enough, then later I noticed what looked like dinky pinecones hanging all over the lower branches. But cedars grow little blue berries, not pinecones. So what the heck were these things? A bit of research told me that bagworms will live inside the bark of Boxelder Maples. But with the stumps lying right next to the cedar tree, its pungent aroma attracted the bagworms like moths to a flame. I manually pulled off literally hundreds of bagworm sacks, which must be physically destroyed to prevent reinfestation. I noticed they had decimated the foliage on the lower branches. Literally stripped them bare. Bagworms will destroy entire trees if not eradicated. For months afterward, I kept looking for those little pinecone things, finding ones here and there once in a while. I was pleased to see the bare branches regrowing their foliage. Now I keep a lookout for not only visible sacks, but any indication of damage. Not content with simply removing the visible bags, I bought this anti-caterpillar product. The entire 20 foot tall tree was thoroughly sprayed several times, yet there’s still enough left in the bottle for a couple more applications. Over the summer, after spraying the tree in the spring, I noticed wasps investigating the tree for several months. Clearly they were searching for tiny insects and such, so I let them do their thing. Whether bagworms or some other pest, they were welcome to eat whatever they could find. Unlike hornets, wasps tend to be relatively docile. They aren’t interested in people or animals; they just want to eat every bug they can find. In spring, I plan to spray the entire tree every few weeks until I run out of product. This stuff doesn’t harm other insects, just bagworms and other unwelcome caterpillars. Anything hurting my tree by feasting on it must die! (Birds and rabbits and stuff are more than welcome to eat the berries, though. Bon appétit!)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-06-04*