---
product_id: 13183077
title: "Southern Ag 100520028 13021 Caterpillar Control, 8 oz"
brand: "southern ag"
price: "934328₫"
currency: VND
in_stock: true
reviews_count: 10
category: "Southern Ag"
url: https://www.desertcart.vn/products/13183077-southern-ag-100520028-13021-caterpillar-control-8-oz
store_origin: VN
region: Vietnam
---

# Organic Bacillus Thuringiensis Concentrated 8 oz liquid Low toxicity, safe for humans & pets Southern Ag 100520028 13021 Caterpillar Control, 8 oz

**Brand:** southern ag
**Price:** 934328₫
**Availability:** ✅ In Stock

## Summary

> 🌱 Protect your garden like a pro — caterpillars don’t stand a chance!

## Quick Answers

- **What is this?** Southern Ag 100520028 13021 Caterpillar Control, 8 oz by southern ag
- **How much does it cost?** 934328₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/13183077-southern-ag-100520028-13021-caterpillar-control-8-oz)

## 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

- • **Eco-Safe Formula:** USDA certified organic, gentle on beneficial insects and pets
- • **Precision Pest Control:** Targets caterpillars & worms with proven Bt bacteria power
- • **Concentrated Efficiency:** Just 2-4 teaspoons per gallon for long-lasting protection
- • **User-Friendly Application:** Dilutes easily for spray or soil treatment, perfect for balcony or backyard gardens
- • **Versatile Garden Guardian:** Effective on vegetables, citrus, nuts, shrubs, trees & ornamentals

## Overview

Southern Ag Thuricide HPC Concentrate is an 8 oz organic insecticide featuring Bacillus Thuringiensis in liquid form. It effectively controls caterpillars and worms on a wide range of plants including vegetables, citrus, nuts, shrubs, trees, and ornamentals. With low toxicity to humans and animals and USDA organic certification, it offers a safe, eco-friendly solution for vigilant gardeners seeking reliable pest control.

## Description

Southern AG Thuricide HPC Concentrate 8oz Organic insecticide. Use on: vegetables, citrus, nuts, shrubs, trees, ornamentals and flowering plants. Low toxicity to humans and animals. Controls listed caterpillars and worms. Rate: 2 to 4 teaspoons per gallon. Active Ingredients: Bacillus Thuringiensis In Liquid Form

Review: 1 teaspoon per quart of water sprayed between rains controls cabbage worms - This saved my leafy greens! 1 teaspoon per quart of water in an electric sprayer. I grew many varieties of leafy greens this summer, mostly from the cabbage family, and cabbage worms were devastating them until I got this product. Those darn worms are nearly invisible until they've eaten through all your leaves. I had a planter full of watercress that was reduced to nothing but stems, and after picking off the by then large green worms and spraying the remaining leaves and stems as well as soaking the soil with this diluted product, my plant came back healthy and happy. At various times, the worms also attacked my arugula, all the different kinds of mustards I was growing, my nasturtiums... pretty much everything. Given that my plants are up on a second floor balcony, I was kind of surprised by this, but I had to fight these worms off all summer long. I did find that I needed to use this repeatedly, basically every time it rained, and sometimes even during periods of drought. It's definitely not a one-time cure--you have to be vigilant about it. The worms start out so small they are practically invisible, and even when fairly large I have trouble seeing them on casual inspection. I dilute 1 teaspoon of this in a quart of water and put it in an electric sprayer. I find that manual sprayers tire my hands too much for the amount of spraying this requires. First I turn over the leaves and spray their undersides. Then I spray the tops and finally the soil. Whatever is left after treating the plants I use to water the soil. The best thing for pests would be to use netting that doesn't touch the plants so the pretty little "butterflies" can't lay their eggs, but for my container plants that is really impractical. That works more for people growing in the ground in beds or rows. Unfortunately, this seems to have no effect on aphids, which I am now battling. I do have a ton of this left, even after using it all summer on a small porch garden.
Review: Absolutely needed for my petunias - I had researched what I needed to keep the bud worms from eating my petunias , and was recommended this, it works great , my flowers look beautiful this year. This BT spray is a very small bottle , but you only 2 ozs per gallon mixed with water , and I spray my flowers using a gallon pump sprayer , so much easier and good coverage , you don’t want to mix up too much at a time because you don’t want it sitting in too much heat, so I pretty much make up what I’m just going to use so I’m guaranteed the effectiveness of it. So the bottle is small but goes along ways , totally worth the price . I spray at night only when there is no sun, I make sure I first the buds and the soil inside my flower pot, without this product , my petunias would have been eaten by those nasty bud worms , this is a great product and I would recommend this to anyone who wants beautiful petunias!

## Features

- Southern Ag Thuricide Hpc Concentrate 8Oz Organic Insecticide
- Use on: vegetables, citrus, nuts, shrubs, trees, ornamentals and flowering plants
- Low Toxicity To Humans And Animals
- Item Package Weight: 1.1 Pounds

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004CZ2YBW |
| Best Sellers Rank | #75,407 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #237 in Insect & Pest Repellent Spray Concentrates |
| Brand | Southern Ag |
| Customer Reviews | 4.6 4.6 out of 5 stars (927) |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Weight | 0.01 ounces |
| Item model number | 100520028 |
| Liquid Volume | 8 Fluid Ounces |
| Manufacturer | Southern AG |
| Product Dimensions | 1 x 1 x 1 inches |
| Specification Met | USDA |
| Target Species | Insects |
| UPC | 051538130219 |

## Product Details

- **Brand:** Southern Ag
- **Item Form:** Liquid
- **Item Weight:** 0.01 Ounces
- **Liquid Volume:** 8 Fluid Ounces
- **Specification Met:** USDA

## Images

![Southern Ag 100520028 13021 Caterpillar Control, 8 oz - Image 1](https://m.media-amazon.com/images/I/81uJiJP6rQL.jpg)

## Questions & Answers

**Q: What color is Thuricide? Does it change color over time?**
A: Thuricide is a fairly thick hunter green color and mine has never changed color. 'Course, I don't keep it any longer than the current growing season. Once you dilute it to spray, it's only active for up to 12 hours but I've never trusted that time frame so always use it within a couple of hours. Does a terrific job of wiping out the caterpillers! We haven't had a tomato hornworm in the veggie garden for 4 years and there has been no harm to anyone who eats the tomatoes! My flowers no longer look like "lace" from caterpiller damage. I highly recommend it!

**Q: How long does one application last?**
A: Application will last until rain unless using on herb plants can use till harvest

**Q: I know it says, "safe for all plants", but I've used products with the same claim before, w/detrimental effects, on atropa belladonna. Anyone?**
A: This is a biologic so I can't imagine it hurting anything but the caterpillars. I would trust the label and follow the directions. On the other hand, fungicides, which BT is not, can be harmful to some plants such as begonias, but as this is a bacteria that is only active for a few days it probably can't harm any plant

**Q: How effective is this product on fungus gnats?**
A: It worked well.  I sprayed twice.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 1 teaspoon per quart of water sprayed between rains controls cabbage worms
*by K***A on September 21, 2025*

This saved my leafy greens! 1 teaspoon per quart of water in an electric sprayer. I grew many varieties of leafy greens this summer, mostly from the cabbage family, and cabbage worms were devastating them until I got this product. Those darn worms are nearly invisible until they've eaten through all your leaves. I had a planter full of watercress that was reduced to nothing but stems, and after picking off the by then large green worms and spraying the remaining leaves and stems as well as soaking the soil with this diluted product, my plant came back healthy and happy. At various times, the worms also attacked my arugula, all the different kinds of mustards I was growing, my nasturtiums... pretty much everything. Given that my plants are up on a second floor balcony, I was kind of surprised by this, but I had to fight these worms off all summer long. I did find that I needed to use this repeatedly, basically every time it rained, and sometimes even during periods of drought. It's definitely not a one-time cure--you have to be vigilant about it. The worms start out so small they are practically invisible, and even when fairly large I have trouble seeing them on casual inspection. I dilute 1 teaspoon of this in a quart of water and put it in an electric sprayer. I find that manual sprayers tire my hands too much for the amount of spraying this requires. First I turn over the leaves and spray their undersides. Then I spray the tops and finally the soil. Whatever is left after treating the plants I use to water the soil. The best thing for pests would be to use netting that doesn't touch the plants so the pretty little "butterflies" can't lay their eggs, but for my container plants that is really impractical. That works more for people growing in the ground in beds or rows. Unfortunately, this seems to have no effect on aphids, which I am now battling. I do have a ton of this left, even after using it all summer on a small porch garden.

### ⭐⭐⭐⭐⭐ Absolutely needed for my petunias
*by M***2 on August 16, 2025*

I had researched what I needed to keep the bud worms from eating my petunias , and was recommended this, it works great , my flowers look beautiful this year. This BT spray is a very small bottle , but you only 2 ozs per gallon mixed with water , and I spray my flowers using a gallon pump sprayer , so much easier and good coverage , you don’t want to mix up too much at a time because you don’t want it sitting in too much heat, so I pretty much make up what I’m just going to use so I’m guaranteed the effectiveness of it. So the bottle is small but goes along ways , totally worth the price . I spray at night only when there is no sun, I make sure I first the buds and the soil inside my flower pot, without this product , my petunias would have been eaten by those nasty bud worms , this is a great product and I would recommend this to anyone who wants beautiful petunias!

### ⭐⭐⭐⭐⭐ Quite surprised
*by R***K on July 7, 2023*

When I applied this product to my cabbage, it seemed to just roll off like the cabbage was water proof. So I wondered how could it possibly do anything to stop the worms from eating it. But as I harvest to make sauerkraut, I'm seeing the cleanest cabbage heads I've ever pulled. You can see a few holes in the leaves here, but they were there before I sprayed the product on . After I sprayed there were no new holes, and when I harvest, there's no sign of loopers in the heads. No slugs or earth worms either. This little bottle of BT is concentrated so I should get at least 4-5 seasons out of it, because I only used about a liter of spray this season. That includes using it on broccoli and cauliflower, and a few flowers that had leaf miners. I should say, this product is not intended for aphids and leaf miners, but it seems to work on them.

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-31*