Get Hold Of This Natural Deterrent To Ants- Giving Ants Their Marching Orders Before They Get Out Of Control.ant Nests Can Be A Real Problem To Control In Border Soils & Lawns & Cause Raised Areas Of Soil & Disruption To Plant Roots. They Can Be Controlled With Parasitic Nematodes.simply Water The Nematodes Directly Into The Nest Using A Watering Can.apply April To September To A Well-watered Lawn Or Border.soil Temperature Must Be At Least 10ºc/50ºf & Ants Should Be Active.the Microscopic Transparent Worm Controls The Grubs Of Both Black & Red Ants.treatment Can Be Repeated. One Pack Will Treat Up To 16 Nests.safe For Children, Pets, Wildlife, Totally Safe To Use Near Food Crops & To Use The Lawn Directly After Application.nematodes Will Attack The Young Ant Larvae So Allow 10-14 Days For Visible Effect.they Are Safer, More Effective, But Slower Acting Than A Contact Action Pesticide Which Kills The Adult Ant But Not The Young Larvae Underground.when You Receive Your Pack Of Nemasys, Place It In The Refrigerator Immediately & Use Within The Use By Date (which Can Be Up To Four Weeks).please Note: This Product Will Not Kill The Adult Ants, It Will Move Them Away From The Areas Treated.