Patria from Lou.,ky writes
Talstar PL granules are not labeled for cockroaches. We would recommend using Bifen IT. This product has the same active ingredient as Talstar PL, however the concentrate has more of the active ingredient in it and will combat the cockroaches effectively. It is a liquid and can be broadcast across your lawn. It can also be sprayed on trees (non-edibles), flowers, shrubs, etc. You will mix 1 fl. oz. per gallon of water. One gallon will treat 1000 sq. ft. The residual outdoors is up to 30 days. Bifen IT can also be used indoors as a crack and crevice spray along the baseboards in your home. The residual indoors is up to 90 days. Please let us know if you have any additional questions.
Answer last updated on: 09/12/2014