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Nemasys J – Biological Control of Leatherjacket (100m², 500m²)
Nemasys J – Biological Control of Leatherjacket (100m², 500m²)
Nemasys J – Biological Control of Leatherjacket (100m², 500m²)

Nemasys J – Biological Control of Leatherjacket (100m², 500m²)

£115.20 Inc VAT £96.00 Ex VAT
SKU: NEMASYSJ
  • Targets turf pests
  • Improves lawn health
  • Easy to apply
  • Suitable for lawns and sports turf

Nemasys J is a non-chemical product that will naturally control leatherjackets in grass and turf. A safe biological pest control option, ideal for ...

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Product Detail

Damaging leatherjacket larvae are laid as eggs in lawns during August by the Crane Fly. The withdrawal of synthetic chemical insecticides means Nemasys J is now the best method to naturally control leatherjackets by using the beneficial parasitic nematodes in Nemasys J.

The Nemasys J nematodes enter the larvae and stops them feeding within three days of infection. The larvae then die within 10-14 days.

The nematodes complete their life-cycle within the larvae, then enter the soil seeking more hosts, and so the pest control continues naturally.

Key points:

  • Contains the beneficial parasitic nematode Steinernema feltiae.
  • Larvae die within 10-14 days.
  • Will not damage turf and is harmless to pets and wildlife.
  • Harmful leather jackets are most active August to October and adult beetles July to August.
  • Areas of use - lawns, golf courses, amenity & outfield turf & amenity grassland.

Please note as this is a live product, we organise direct delivery from the manufacturer direct to our customer in "cool-pak" packaging. This does mean that deliveries of nematodes can take from 2-3 weeks to ensure that you receive the most fresh and viable nematodes.

* Always follow the Usage guide and Aftercare advice

2 pack sizes are available to choose from:

  • 50 million nematodes covering 100m²
  • 250 million nematodes covering 500m²

50 million per 100m²

  • Apply when soil temperatures are at least 10°C.
  • Optimum application period is usually from August to September although larvae can be active outside of these periods.
  • Check your soil temperature with a Soil Probe Thermometer.
  • Nemasys arrives in a sealed cool box - can be refrigerated for up to four weeks.
  • Remove fine mesh filters from spray equipment - especially in-line lance filters when applying.
  • Add the nematodes to a bucket of water and mix thoroughly - do not allow solution to sit longer than 1 hour.
  • Soil must be regularly watered to ensure that it stays damp for the nematodes to remain active - do not apply during drought conditions.
  • Repeat treatment may be required.

After using Nemasys J – Biological Control of Leatherjacket, follow all label recommendations, clean equipment thoroughly, and monitor the treated area to ensure the product has performed as expected.

Orders placed by 1pm Monday to Friday are typically delivered within 3 to 5 working days.

Orders up to 15kg

  • FREE UK mainland delivery on orders over £50
  • Orders under £50: £5.99

Orders over 15kg

  • Delivery is calculated by weight and postcode and starts from £9.99

This product is delivered directly from one of our trusted suppliers so is not eligible for Click & Collect or Express Delivery.

For full delivery charges, pallet deliveries and delivery regions, view our delivery page.

What is Nemasys J used for?
Nemasys J is a non-chemical product that will naturally control leatherjackets in grass and turf. Safe biological control Ideal for use on garden lawns and turf.
How should I use Nemasys J- Biological Control of Leatherjackets safely and effectively?
Nemasys J- The Biological Control of Leatherjackets should always be used at the correct rate and in line with the instructions supplied with the product.
Nemasys J – Biological Control of Leatherjacket (100m², 500m²)
Nemasys J – Biological Control of Leatherjacket (100m², 500m²)
Nemasys J – Biological Control of Leatherjacket (100m², 500m²)