Kat writes
Gentrol Complete Aerosol is not labeled to be applied directly to drains for roach control. For active roaches indoors, a combination of products and repeat treatments are required to eradicate them. We would recommend one of our Roach Control Kits for a complete treatment program. Each Kit contains roach bait gel, insect growth regulator (IGR), and residual spray to treat for this pest. Please also take a few moments to review our online Roach Treatment Guide for more tips.
Answer last updated on: 08/18/2021