What type of structure is commonly indicative of a termite infestation?

Frass is a term that refers to the droppings of wood-destroying insects, including termites. When termites feed on wood, they digest the cellulose and excrete the remaining waste, which appears as small, pellet-like droppings. The presence of frass, especially near wooden structures or inside walls, indicates active termite feeding and serves as a strong indicator of an infestation.

Observing frass along with other signs, such as mud tubes, discarded wings, or hollow-sounding wood, can help professionals determine the extent of the infestation and the necessary steps for treatment. While other options such as wood piles and mulch may provide a conducive environment for termites, they do not directly indicate an active infestation. Peeling paint may suggest moisture issues but is not a definitive sign of termite presence. Therefore, the identification of frass is critical for recognizing and addressing termite problems effectively.