Matthew from Doylestown, Pa writes
Termidor is designed to bind to the treated soil for longterm residual, so you would not have to worry about the application breaking down more quickly. The concern would be that your barrier is covered up with untreated organic material, thereby limiting insect control. We do suggest that mulch or similar groundcover be kept at least 12 inches from the foundation, so if this application is done accordingly, then your Termidor barrier would remain intact and effective.
Answer last updated on: 04/17/2018