Chong writes
Permethrin SFR 36.8% can kill roaches but it is not a top choice for active roaches indoors. If treating for an active roach infestation, we would recommend using one of our Roach Control Kits that contain the most effective combination of products and enough product for repeat applications that are required every 14 days. Please view those Roach Control Kits and our Roach Treatment Guide for more information on the most effective treatment program.
Answer last updated on: 03/01/2022