What is one of the key signs of a termite infestation?

One of the key signs of a termite infestation is the presence of frass, or wood dust. Frass is a byproduct created by termites as they consume wood. When termites burrow into wood to feed, they leave behind tiny pellets of digested wood mixed with saliva and feces, which can accumulate and resemble sawdust. Finding frass around wooden structures, particularly near entrances or exit holes, is a strong indication that termites are actively feeding in the area. This is crucial for pest control technicians to recognize, as it allows for early identification and effective treatment of the infestation, helping to protect the integrity of the structure.