---
product_id: 792035347
title: "Copper Fungicide Concentrate"
price: "€ 29.08"
currency: EUR
in_stock: null
reviews_count: 8
url: https://www.desertcart.ie/products/792035347-copper-fungicide-concentrate
store_origin: IE
region: Ireland
---

# Safe to use up to day of harvest Approved for organic gardening Concentrated formula for precise mixing Copper Fungicide Concentrate

**Price:** € 29.08
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** Copper Fungicide Concentrate
- **How much does it cost?** € 29.08 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/792035347-copper-fungicide-concentrate)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Organic & Safe:** Certified for organic produce—grow clean, green, and worry-free.
- • **Trusted Legacy:** From Bonide, a gardening pioneer since 1926, ensuring quality you can rely on.
- • **Versatile Application:** Perfect for fruits, veggies, herbs, ornamentals, and turf alike.
- • **Powerful Disease Defense:** Controls powdery mildew, black spot, rust & more for a thriving garden.
- • **User-Friendly Concentrate:** Ready-to-mix liquid formula makes application quick and hassle-free.

## Overview

Captain Jack’s Liquid Copper Fungicide Concentrate is a trusted, organic-approved solution that effectively controls a broad spectrum of fungal diseases in fruits, vegetables, ornamentals, and turf. Its easy-to-mix formula allows safe application up to the day of harvest, making it ideal for professional and home gardeners seeking reliable, long-lasting plant protection.

## Description

Liquid Copper Fungicide ConcentrateControls powdery mildew, downy mildew, black spot, peach leaf curl, rust, and other listed diseases. Perfect for use on vegetables, roses, fruits, nuts, herbs, ornamentals, and turf. Incredibly easy to apply and can be used up to the day of harvest.About Bonide:Bonide has been trusted since 1926 as the leader in providing the best possible products and solutions for home, lawn, and garden pest problems. Based out of Oriskany, New York, we continue to grow our reputation as a leader in the lawn and garden care categories by delivering the highest quality products alongside our great customer service. Our goal is to help consumers throughout their entire purchasing process by recognizing signs of trouble, developing the best solutions, and recommending the perfect products.

Review: Great product for delicate plants - Works really well. Didn't burn even the most delicate plants. For a few to be on the safe sideI just added extra water. Even treated the soil.
Review: Easy to use! - ⭐⭐⭐⭐⭐ This antifungal concentrate works exactly as intended and does the job well for my houseplants. It’s easy to mix into a solution, clear instructions, and straightforward to use. Simple, effective, and definitely something I’d purchase again.

## Features

- Control fungus and disease in your garden with Captain Jack’s Liquid Copper Fungicide Concentrate!
- Approved for organic gardening, this fungicide is suitable for the production of organic produce and can even be used up until the day of harvest!
- Copper Fungicide effective in the control and prevention of a wide range of plant diseases. Listed common garden diseases include blight, black spot, powdery mildew peach leaf curl and more.
- Apply copper fungicide to fruits, vegetables, ornamentals and other plants in your lawn and garden for complete and long-lasting disease control.
- This product arrives conveniently ready-to-mix! To use, mix with water according to package directions and thoroughly apply to affected plants. Please see product label for full use instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #717 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #27 in Insect & Pest Repellent Sprays |
| Customer Reviews | 4.6 out of 5 stars 9,907 Reviews |

## Product Details

- **Item Form:** Liquid
- **Item Weight:** 1 Pounds
- **Liquid Volume:** 16 Fluid Ounces
- **Active Ingredients:** Copper Octanoate(Copper Soap)
- **Brand:** Bonide

## Images

![Copper Fungicide Concentrate - Image 1](https://m.media-amazon.com/images/I/716BOXqvOTL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Has anyone used this to prevent early or late tomato blight?  I lost a huge tomato crop last year and I need to try to prevent it this year.**
A: Yes, George!  I have used it the last couple years on my tomatoes and cucumbers and it really works.  Start using it early, even before any signs of disease and continue to spray it on every week.  Rotate your crop so you aren't planting were you had blight last year, it remains in the soil from year to year.  I also plant in black plastic to help separate the plant from the soil.  Be sure to spray the lower leaves the most.   Good luck!

**Q: what ratio water to concentrate?**
A: Low end for preventative and low density pest problems. Higher concentration if severe issue is present. Try to use the lowest concentration that works for YOUR situation. Read entire label carefully. Ask questions with YOUR county extension agent or Dept. of Ag State Inspector for your region. Saftey first.

**Q: Does this work on Damping Off root rot for seedlings?**
A: Being that you are talking about the seedling stage of growth, this product won't work.   Wait till the soil is warm to plant.   If the plants had leaves to absorb the product, then the Bonide would be beneficial to use, but it will take several treatments.  Keep in mind that rain or irrigation water will wash the product off the plants requiring retreating.

**Q: anyone use this for cedar rust fungal infection on Apple trees? thanks**
A: yes a copper fungicide will work . Always read instructions when preparing product knowing that more is not better

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product for delicate plants
*by A***R on January 5, 2026*

Works really well. Didn't burn even the most delicate plants. For a few to be on the safe sideI just added extra water. Even treated the soil.

### ⭐⭐⭐⭐⭐ Easy to use!
*by J***E on January 3, 2026*

⭐⭐⭐⭐⭐ This antifungal concentrate works exactly as intended and does the job well for my houseplants. It’s easy to mix into a solution, clear instructions, and straightforward to use. Simple, effective, and definitely something I’d purchase again.

### ⭐⭐⭐⭐ Effective Fungicide That Controls Plant Disease but Requires Careful Use
*by S***N on September 3, 2025*

This copper fungicide does a good job of controlling plant diseases and keeping my garden healthier. I used it on vegetables and ornamental plants and noticed a clear improvement in preventing issues like leaf spots and blight. The concentrate mixes easily with water and sprays evenly with a standard garden sprayer. That said it does require careful use. If the mixture is applied too heavily or too often it can cause leaf burn or discoloration. Following the directions closely is important to avoid damaging sensitive plants. The bottle could also include a more precise measuring cap to make mixing easier. Overall this is a reliable and effective plant disease control product that works well when used correctly. It is a good organic gardening option but it is not completely foolproof and needs some caution in application.

## Frequently Bought Together

- Bonide Captain Jack Copper Fungicide 16 oz Concentrated Plant Disease Control Solution for Organic Gardening
- Chapin 20000 Made in USA 1 -Gallon Lawn and Garden Pump Pressured Sprayer, for Spraying Plants, Garden Watering, Weeds and Pests, Polypropylene, Translucent White
- Bonide Captain Jack's Neem Max, 16 oz Concentrated Cold Pressed Neem Oil, Multi-Purpose Insecticide, Fungicide, Miticide, and Nematicide for Organic Gardening

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-23*