Bifen L/P is a 0.2% Bifenthrin sand based insecticide granule used for killing listed pests. It can be used to treat not only residential, but institutional, public, commercial and industrial buildings, parks, recreational areas and athletic fields. Once Bifen L/P is in the soil, it not only works as a killing method, but also as a prevention method. Spread along the outside of the home as a perimeter barrier or as a general broadcast in the yard.