From The Renowned Range Of Nemasys Natural Pest Control Comes Nemasys Leatherjacket Killer - And Youll Need It If Your Lawn Has Developed Brown Patches And The Grass Has Little Root Growth As The Chances Are Youve Got Leatherjackets (the Larvae Of The Cranefly Or Daddy Longlegs). the Prolific Lawn Pest Is Hunted Down And Killed By The Nematode Steinernema Feltiae Contained In Nemasys Leatherjacket Killer But There Is Only A Small Window Of Opportunity To Prevent This Very-expensive-to-repair Lawn Damage; Nemasys Leatherjacket Killer Applications Should Be Made 1 - 2 Weeks After The First Craneflies Have Been Spotted Usually From August Onwards.please Note: This Item Will Be Despatched At The Optimum Time For Application. This Live Product Is Despatched To Uk Mainland Addresses Only!nemasys Leatherjacket Killer Should Be Applied From Late August To End Of Octobersupplied In Two Pack Sizes - 100m And 500msimply Water Onto Soilfull Instructions Providedessential To Keep Lawn Moist Before And After Applyingmuch More Cost Effective Than Re-turfing A Lawnsafe To Use Around Children, Pets And Wildlifenematode Pest Control Deliverybeing A Live Product, Nematodes Are Ordered Every Week On A Monday To Be Delivered On Friday Of The Same Week.for Example An Order Placed On A Friday Would Be Ordered On The Following Monday To Be Delivered On Friday Of That Week.