Leatherjackets are the larval stage of the crane fly or daddy long legs and they can quickly devastate a lawn. Control leatherjackets naturally by treating with Nemasys Leatherjacket Killer in September - the ideal time to treat. Available NOW.   

Crane flies or daddy long legs lay their eggs in the same area of lawn from which they emerge, so numbers increase rapidly. These eggs hatch in August / Sept and the larvae immediately start to feed on the grass roots. The leatherjackets will feed though the autumn, before overwintering. They start feeding again the following spring and gorge on grass roots before pupating to emerge as adults in August. The symptoms of an attack are :-

• Grass growth slows and yellow patches appear.
• Grass easily pulled up with little or no root growth.
• Birds, particularly starlings, will pull at the lawn in search of the leatherjackets.

In August, customers report clouds of daddy long legs emerging from lawns in early morning leaving behind the casings sticking up in the lawn (see left). As the daddy long legs emerge, they start to lay their eggs back in infected lawns starting the whole cycle again - the next generation of leatherjackets hatch within 2 weeks. Leatherjackets are 2.5cm / 1" long, greyish black in colour, legless and with no distinct head.

Control leatherjackets naturally by applying Nemasys® Leatherjacket Killer containing millions of nematodes (Steinernema Feltiae) in September i.e. NOW. After application the nematodes kill the leatherjackets, but are harmless to children, wildlife and pets. The lawn may be used immediately after application. Nemasys® Leatherjacket Killer is available in 2 pack sizes (for smaller lawns just make solution stronger - you can't overdose!). 

Large Nemasys® Leatherjacket Killer  - treats 100 sq.m / 125 sq. yds - £19.95
Economy Nemasys® Leatherjacket Killer  - treats 500 sq.m / 625 sq.yds -£75.00 saving £24.75

Nemasys® Leatherjacket Killer should be applied to the lawn in September i.e. NOW. The lawn must be moist (we recommend pre - watering) and apply on a dull day or in the evening. After application you MUST wash in the nematodes in by watering  heavily by hose or by sprinkler.  To apply simply mix the nematodes with water and :- 

• Apply large packs with a watering can or hose-end feeder.

• Economy packs MUST be applied with a sprayer and cannot be split. 

Once applied the nematodes will seek out the leatherjacket larvae. On contact they enter the larvae and destroy it. Having destroyed the leatherjacket ,the nematodes multiply and are released back into the soil to hunt down more leatherjackets.

N.B. Nemasys® Leatherjacket Killer is a living, perishable product. Once you receive it, it will keep for up to 2 weeks in the FRIDGE. Use before the expiry date.

"Dear all, I applied your treatment for leather jackets in the autumn and the result, a lawn that looks like a lawn! thanks" Regards Trevor Godwin

"Hello Jon, this is just to let you know how pleased we are with the leatherjacket control. We applied the nematodes according to the instructions and the brown patches on our lawns have definitely stopped spreading. The fresh grass is already growing. We also used your autumn lawn feed and the benefit is apparent. Last year we helplessly watched as our lawns were mutilated. This year we have been able to fight back. Thank you, from two keen gardeners." Brenda and Cyril.

"Dear Jon, I have 2 lawns but every summer they went mostly patchy yellow and looked half dead and straw like, despite using fertiliser and watering in dry spells. No one could help and then we came across your site and read about leatherjackets. I decided to try your nematodes. I admit I thought it all was a lot of nonsense!! How wrong I was. To my amazement this year both lawns are lush and beautifully green - I find it hard to believe ! Thank you for lovely grass again. I feel that your nematode treatment should be more widely known and written about by gardening column writers to say nothing of books." Many thanks again Derek Wallace

"Thanks for your speedy answer to my questions about the Leatherjacket killer. It is a great product that certainly saved my increasingly ravaged lawn, this year it looked better than it had in ages." Regards Tony

Treating severe or persistent Leatherjacket infesations - If you are treating in the spring i.e. April, the packs will treat :-

Spring Leatherjacket Killer Large Pack - treats 50 sq.m / 62.50 sq. yds in the spring - £19.95 - removed for 2010

Spring Leatherjacket Killer Economy Pack Pack - treats 250 sq.m / 312.50 sq. yds in the spring - £75.00 saving £24.75 - removed for 2010

Special Offers - Double delivery of Nemasys® Leatherjacket Killer! Our double delivery is sent to you in April and September, the ideal times to treat and saves you money too!

Pre-order a Nemasys® Leatherjacket Killer double delivery for delivery NOW and w/c 13/09

Spring plus autumn large pack normally £39.90 offer £34.90 saving £5.00 - removed for 2010
Spring plus autumn economy pack normally £150.00 offer £140.00 saving £10.00 - removed for 2010