BioLogic Scanmask Beneficial Nematodes, 10 Million Steinernema feltiae (Sf) Nematodes for Natural Insect Pest Control NATURAL PEST CONTROL: Kills over 230 different pests. Safe for people, pets, plants and beneficials! TOP QUALITY NEMATODES PRODUCED IN THE U.S.A: Shipped in an insulated box with ice to ensure quality KILL FLEAS, FUNGUS GNATS, GRUBS AND MORE: Contains Sf nematodes which kill a wide range of pests EASY TO APPLY: Apply with watering can, pump sprayer, hose end sprayer, or Nema-Jet Sprayer TREATS 400 SQUARE FEET: Great for medium sized gardens or small lawns