---
product_id: 719105877
title: "MONTEREY BT CONCENTRATE"
brand: "monterey"
price: "€ 94.03"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.es/products/719105877-monterey-bt-concentrate
store_origin: ES
region: Spain
---

# OMRI certified organic Safe for beneficial insects & plants Targets caterpillars & worms MONTEREY BT CONCENTRATE

**Brand:** monterey
**Price:** € 94.03
**Availability:** ✅ In Stock

## Summary

> 🌿 Defend your garden like a pro — organic, precise, and powerful!

## Quick Answers

- **What is this?** MONTEREY BT CONCENTRATE by monterey
- **How much does it cost?** € 94.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/719105877-monterey-bt-concentrate)

## Best For

- monterey enthusiasts

## Why This Product

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

## Key Features

- • **Rapid Impact:** Insects stop feeding immediately after ingestion, minimizing plant damage and maximizing garden health.
- • **Effortless Application:** Instantly mixes with water and applies easily via spray bottle or pressure sprayer for quick, hassle-free use.
- • **Precision Pest Control:** Specifically engineered to eliminate caterpillars and worm-type insects without harming pollinators or earthworms.
- • **Organic Gardening Approved:** OMRI Listed and USDA compliant, perfect for eco-conscious professionals who demand clean, green solutions.
- • **Versatile Plant Protection:** Effective on a wide range of vegetables, ornamentals, and shade trees, ensuring your garden thrives.

## Overview

Monterey BT Concentrate is a professional-grade, organic-certified insecticide designed to target caterpillars and worm pests while preserving beneficial insects and soil health. It’s easy to apply, fast-acting, and safe for a wide variety of plants, making it the go-to choice for millennial managers who want effective, eco-friendly garden protection.

## Description

Monterey B.t. must be eaten by worms or caterpillars to be effective. After ingesting the insecticide, they immediately stop feeding, though they may otherwise appear to be unaffected for several days. Best results are obtained by treatments when worms are small; they must be actively feeding on treated, exposed foliage. You may apply Monterey B.t. up to and on the day of harvest. Apply Monterey B.t. when worms or caterpillars are first noticed. Apply more frequently to control heavy infestations. Apply thoroughly to top and bottom of foliage. About Monterey: Monterey Lawn and Garden Products is a leading distributor of plant protection chemicals and fertilizers. We strive to offer home gardeners the same professional-grade technology available to the agricultural industry. Our growing line of products provide economical and effective solutions to yard and garden problems, and are properly registered and labeled to be sold to and used by the home gardener.

Review: WISH IT WORKED BETTER
Review: Pesticide

## Features

- INSECT KILLER - Designed for use on caterpillars and worm type insects, such as cabbage looper, bagworm, gypsy moth, fall cankerworm, elm spanworm, and more. Has no effect on birds, earthworms, or beneficial insects such as honeybees or ladybugs.
- FOLIAGE PROTECTOR - Designed for use on a variety of plants, including broccoli, celery, cabbage, turnip greens, mustard greens, cauliflower, melons, lettuce, tomatoes, shade trees, ornamentals, and many more.
- FOR ORGANIC GARDENING - OMRI Listed for Organic Gardening. Organic Material Review Institute reviews products to ensure a product complies with all organic standards under the USDA’s National Organic Program (NOP).
- EASY TO APPLY - Product instantly mixes with water and should be applied using either a trigger spray bottle or pressure tank sprayer. Carefully read and use according to label directions.
- QUICK ACTION - Insects eat treated foliage, then immediately stop feeding and damaging plants.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N6QSB3X |
| Active Ingredients | Bacillus Thuringiensis Subspecies Kurstaki Strain SA-12 Solids, Spores and Lepidopteran Active Toxins Active Ingredients Bacillus Thuringiensis Subspecies Kurstaki Strain SA-12 Solids, Spores and Lepidopteran Active Toxins See more |
| Brand | Monterey |
| Brand Name | Monterey |
| Customer Reviews | 4.5 out of 5 stars 329 Reviews |
| Included Components | Monterey LG6328 B.t. Concentrate For Insects, 8oz. |
| Item Form | Spray |
| Item Type Name | Monterey LG6328 B.t. Concentrate For Insects, 8oz. |
| Item Weight | 9.6 Ounces |
| Item form | Spray |
| Item weight | 9.6 Ounces |
| Liquid Volume | 8 Fluid Ounces |
| Liquid volume | 8 Fluid Ounces |
| Manufacturer | Monterey |
| Specification Met | USDA |
| Specification met | USDA |
| Target Species | Insects |
| UPC | 022179104747 |
| Unit Count | 8.0 Milliliters |

## Product Details

- **Brand:** Monterey
- **Item form:** Spray
- **Item weight:** 9.6 Ounces
- **Liquid volume:** 8 Fluid Ounces

## Images

![MONTEREY BT CONCENTRATE - Image 1](https://m.media-amazon.com/images/I/71RIoPrU0eL.jpg)

## Questions & Answers

**Q: Will bt kill above ground aphids on leaves of plant**
A: No this spray will not work on aphids … you can try a very diluted dawn spray … then rinse your plants with the water hose … to wash the aphids off… you might have to do this 2-3 times … just keep a close watch and do it as they re-appear … also do it when there is no sun

**Q: How many quarts does this make?**
A: Most common dilution rate is 2 ounces per 3 gallons of water.

**Q: Does this work on mosquitoes, similar to the Bt in mosquito bits, or is this a different strain?**
A: This works on EVERYTHING.. Spray it on after dark

## Customer Reviews

### ⭐⭐⭐ WISH IT WORKED BETTER
*by J***. on 1 August 2025*



### ⭐⭐⭐⭐⭐ Pesticide
*by A***N on 29 October 2025*



### ⭐⭐⭐⭐ Caterpillar invasion
*by D***S on 5 August 2024*



## Frequently Bought Together

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- Safer 5118-6 Insect Killing Soap Concentrate - Insecticidal Soap for Plants - Kills Aphids, Whiteflies, Thrips, Spider Mites, and More - OMRI Listed for Organic Use

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-03*