Dale from Sterling, Va writes
Talstar N cannot be used on residential lawns. Talstar PL granules could help eliminate fungus gnat larvae but generally the gnats that are bothering you outdoors are not fungus gnats. You can use Talstar P Liquid to spray topically on plants, bushes and on the lawn to control other gnat species as they land on treated areas.
Answer last updated on: 03/11/2013