---
product_id: 60633628
title: "JBA Blight Guard 500ml Concentrate for Potatoes and Tomatoes - concentrate soloution that can be mixed to make 250 litres to prevent blight and help produce healthier crops"
brand: "jba seed potatoes"
price: "€ 50.67"
currency: EUR
in_stock: true
reviews_count: 8
category: "Jba Seed Potatoes"
url: https://www.desertcart.hr/products/60633628-jba-blight-guard-500ml-concentrate-for-potatoes-and-tomatoes-concentrate
store_origin: HR
region: Croatia
---

# Weekly application for lasting protection 100% natural & bee-friendly 500ml concentrate = 250L spray JBA Blight Guard 500ml Concentrate for Potatoes and Tomatoes - concentrate soloution that can be mixed to make 250 litres to prevent blight and help produce healthier crops

**Brand:** jba seed potatoes
**Price:** € 50.67
**Availability:** ✅ In Stock

## Summary

> 🌱 Protect your patch, grow with confidence!

## Quick Answers

- **What is this?** JBA Blight Guard 500ml Concentrate for Potatoes and Tomatoes - concentrate soloution that can be mixed to make 250 litres to prevent blight and help produce healthier crops by jba seed potatoes
- **How much does it cost?** € 50.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/60633628-jba-blight-guard-500ml-concentrate-for-potatoes-and-tomatoes-concentrate)

## Best For

- jba seed potatoes enthusiasts

## Why This Product

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

## Key Features

- • **Maximized coverage:** One 500ml bottle transforms into 250 litres of potent blight-preventing spray—economy meets efficiency.
- • **Consistent crop care:** Apply every 7 days from June to September to maintain a blight-free, thriving potato and tomato harvest.
- • **Prevent, don’t cure:** Proactively shield your plants before infection strikes—because prevention is the new power move.
- • **Nature-powered defense:** Harness a 100% natural, chemical-free formula that’s safe for bees and your garden ecosystem.
- • **Rain-resistant resilience:** Stay protected even after rain with a formula that clings and keeps working when others wash away.

## Overview

JBA Blight Guard 500ml Concentrate is a natural, bee-friendly solution designed to prevent foliar blight in potatoes and tomatoes. When diluted, it yields up to 250 litres of spray, providing effective, rain-resistant protection with weekly applications during the growing season. Ideal for proactive gardeners seeking healthier, blight-free crops without harmful chemicals.

## Description

JBA Blight Guard 500ml Concentrate for Potatoes and Tomatoes - concentrate soloution that can be mixed to make 250 litres to prevent blight and help produce healthier crops : desertcart.co.uk: Garden

Review: A good cost effective blight control - Seems to be able to stay active after rain where other sprays wash off
Review: Tomato blight spray - I have used it once, it has to be used every week. It is too early to tell how effective it is against tomato blight. Time will tell

## Features

- JBA Blight Guard produced especially for your gardening enjoyment
- Helps to reduce the chance of crops taking foliar blight
- 100% natural product with no dangerous chemicals Bee friendly formula
- Apply every 7 days during June - September
- Potato Blight Spray - this will not cure blight after plants have become infected

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y18FZ3R |
| Best Sellers Rank | 59,764 in Garden ( See Top 100 in Garden ) 101 in Vegetable Plant Fertilisers |
| Brand Name | JBA Seed Potatoes |
| Coverage | Makes up to 250 litres |
| Customer Reviews | 4.2 4.2 out of 5 stars (172) |
| Item Form | Liquid Concentrate |
| Item Weight | 500 Grams |
| Liquid Volume | 500 Millilitres |
| Manufacturer | JBA Seed Potatoes |
| Unit Count | 500.0 millilitre |

## Product Details

- **Brand:** JBA Seed Potatoes
- **Item form:** Liquid Concentrate
- **Item weight:** 500 Grams
- **Liquid volume:** 500 Millilitres
- **Manufacturer:** JBA Seed Potatoes

## Images

![JBA Blight Guard 500ml Concentrate for Potatoes and Tomatoes - concentrate soloution that can be mixed to make 250 litres to prevent blight and help produce healthier crops - Image 1](https://m.media-amazon.com/images/I/711pP6KNPGL.jpg)

## Questions & Answers

**Q: can you please expand on the term "relative non toxicity"?  All poisons are "relative" in comparison - eg glycophosphate which is a nightmare.**
A: Blight guard has an extremely low toxicity allowing it to be used as an emulsifier in many domestic applications.

**Q: Will this protect against both early and late blight?**
A: As far as I’m aware it will. I’ve used it once & it did the trick. It’s easy to apply and doesn’t leave any residue etc.

**Q: What is the active ingredient?**
A: Hi, Thank you for your question the JBA Blight Guard is a 100% natural product with no chemicals and is safe to use in your garden. Simply add 40ml of the JBA Blight Guard concentrate to 20 litres of water and either spray onto the foliage or apply with a watering can. Spraying is considered to be the best method of application as you need to spray the foliage on both sides of the leaf. The solution can also be made up in smaller batches of 10ml to 5 litres of water. You should use this product every 7 days during June - September to help combat the threat of blight. If you have a period of weather that's more likely to cause blight (Smith Period) then use the product at the time that period is forecast. Use any mixed solution within 48hrs of being mixed with water. This product will only help to reduce the chances of your crops getting blight and like any other product we can't guarantee that it will prevent blight in all cases. I hope that helps. Regards Judith

**Q: Does it have a use by date**
A: There is no sell by date on bottle

## Customer Reviews

### ⭐⭐⭐⭐⭐ A good cost effective blight control
*by G***S on 26 July 2025*

Seems to be able to stay active after rain where other sprays wash off

### ⭐⭐⭐⭐ Tomato blight spray
*by M***N on 15 July 2025*

I have used it once, it has to be used every week. It is too early to tell how effective it is against tomato blight. Time will tell

### ⭐⭐⭐⭐⭐ Blight treatment.
*by D***E on 3 January 2026*

Very impressed with this product. Every year I’ve had blight on my tomatoes. But having used this product in summer 2025 I had no cases of blight at all!! Let’s see what happens in 2026?

## Frequently Bought Together

- JBA Blight Guard 500ml Concentrate for Potatoes and Tomatoes - concentrate soloution that can be mixed to make 250 litres to prevent blight and help produce healthier crops
- Spear & Jackson 5LPAPS 5 Litre Pump Action Pressure Sprayer
- Generic Potato Blight Fungicide, Protects Against Early & Late Blight, Rainfast in 1 Hour

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-18*