Gooseberry Sawfly Nematodes – 30sq.m x 2 Treatments

SKU: GSFLY
£1699
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Gooseberry sawfly nematodes provide a natural biological solution for controlling gooseberry sawfly larvae that damage gooseberry and currant bushes.

Apply in the evening or during overcast conditions. Water immediately after application. When applied over plants, lightly water within 30 minutes to wash nematodes into the soil where gooseberry sawfly larvae pupate. These beneficial nematodes actively seek out and control the larvae in the soil, helping to protect plants and prevent repeat infestations.

This treatment is child, pet and wildlife friendly and works without chemicals, making it suitable for gardeners who want a natural approach to pest control.

Natural Gooseberry Sawfly Control Using Beneficial Nematodes

Gooseberry sawfly larvae can rapidly strip the leaves from gooseberry and currant bushes, weakening plants and reducing fruit production. Beneficial nematodes are microscopic organisms that enter the pest larvae and stop their development.

Once applied, the nematodes move through the soil searching for sawfly larvae where they pupate, helping to break the pest lifecycle and reduce future outbreaks.

Child, Pet and Wildlife Friendly Pest Control

This biological control works without chemical pesticides. The nematodes occur naturally in soil and specifically target pest larvae, making them safe for use in gardens where children, pets and wildlife are present.

How Gooseberry Sawfly Nematodes Work

The nematodes are applied in water and move through the soil to locate gooseberry sawfly larvae. Once they find a host, they release natural bacteria which stop the pest feeding and reproduction.

This targeted action helps protect gooseberry bushes while maintaining a balanced garden ecosystem.

Application Instructions

Preparing the Nematode Solution

Empty one sachet into 2.5 litres of water and stir continuously to create a stock solution. Once mixed, the solution should be used within four hours.

Add the stock solution to a sprayer or watering can and mix with 4.5 litres of water to create a total 7 litre working solution.

Applying Gooseberry Sawfly Nematodes

Apply the nematode solution as a foliar spray or watering treatment, ensuring the bush, leaves and soil beneath the plant are thoroughly covered. When applying over foliage, water the plants within 30 minutes so the nematodes wash into the soil where the pests pupate.

Each sachet treats approximately:

  • 5 to 7 small bushes
  • 3 to 5 large bushes
  • Up to approximately 30m² of planting area

Apply around 250ml to 500ml of nematode solution per square metre.

Best Conditions For Application

  • Minimum soil temperature of 8°C
  • Apply during evening, overcast weather or rainfall
  • Keep soil moist for 3 to 4 weeks after application
  • Water immediately after applying
  • Please note these are a live product, they are non-returnable and have a shelf life of approx 2 weeks.

Storage Instructions

  • Store in the refrigerator below 5°C as soon as possible after delivery
  • Use before the expiry date on the packaging
  • Do not freeze
  • Avoid exposure to high temperatures

Product Safety

  • Child, pet and wildlife friendly
  • Safe natural pest control method

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How To Use

How To Use Gooseberry Sawfly Nematodes

Apply gooseberry sawfly nematodes as a foliar and soil treatment to target larvae on plants and where they pupate in the soil.

Before You Start

  • Apply when soil temperatures are at least 8°C
  • Choose evening, overcast conditions or light rainfall
  • Ensure soil and foliage are moist before application

Step By Step Application

  1. Prepare the stock solution
    Empty one sachet into 2.5 litres of water and stir continuously. Use within 4 hours.
  2. Dilute the solution
    Add the 2.5L stock solution to 4.5 litres of water and mix well to make 7 litres total.
  3. Apply to plants and soil
    Spray directly onto the leaves, stems and the soil beneath the bush. Ensure full coverage of the plant and surrounding soil.
  4. Wash nematodes into the soil
    Lightly water plants within 30 minutes to move nematodes off the leaves and into the soil where pests pupate.

Application Rates

  • Apply approximately 250–500ml per m²
  • One sachet treats approximately 30m² or 3–7 bushes depending on size

Aftercare

  • Keep the soil moist for 3–4 weeks after application
  • Repeat treatment after 5–7 days
  • Continue monitoring and reapply if new larvae appear