Leatherjacketfree Nematodes Are A New Safe, Natural & Effective Biological Control For Leatherjackets That Gets Right Down To The Roots For A Green & Healthy Lawn Without Damage.leatherjackets Are The Soil Dwelling Larvae Of Crane Flies Or Daddy Long Legs Which Eat The Roots Of The Grass, Resulting In Yellow Patches & Even The Lawn Dying. The Nematodes Get Right To The Lawn Roots To Help Control The Larvae & Keep Your Lawn Lush & Green. easy Application, The Compact Globe Packaging Houses A Diffusing Bio-pouch Which Can Be Directly Added To Water & Then Applied Using A Watering Can Or A Sprayer. The Sachet Will Not Dissolve At All, It Works Like A Tea Bag With The Nematodes Diffusing Out Of The Sachet When Mixed In Water. When The Water Turns Milky / Cloudy The Nematodes Have Diffused Out Of The Sachet, The Gel-like Carrier Material Contained Within The Sachets Does Not Dissolve This Is Simply The Carrier For The Nematodes & Not The Nematodes Themselves.nematodes Are Microscopic So You Will Not See Them In The Water Or The Sachet Even Though There Are Between 5 & 10 Million Of Them Per Sachet! (product Dependent) this New Award-winning Natural Control For Leatherjackets Does Not Need To Be Kept Refrigerated. Neudorff Nematodes Do Not Need To Be Refrigerated Due To Being Placed In A State Called, Cryptobiois Which Prevents Them From Moving Or Using Oxygen. They Remain Alive In This State Which Means They Can Be Stored For Longer.leatherjacketfree Nematodessafe, Natural & Effective Controleasy Application Using A Diffusng Bio-pouchtreats Leather Jackets (larvae Of Crane Flies) & Gnat Larvaeeliminates Pests Right Down To The Rootssafe For Children & Petstreated Areas May Be Entered Immediately After Applicationtreats Up To 100 Square Metresleatherjacket Grubfree Nematodes Can Also Be Effective Against The Following Pests:-american Cockroacharmywormartichoke Plum Mothasian Cockroachbeet Armywormblack