What type of damage with the grain and hard mastic material in the galleries indicates subterranean termites?

Damage with the grain in wood is a telltale sign of subterranean termite activity. Subterranean termites consume wood along the grain, which leads to specific damage patterns. This type of damage often appears as tunnels or galleries that follow the grain structure of the wood, resulting from their feeding behavior. It is indicative of their preference for the softer springwood rather than the denser summerwood, leaving the outer layer intact. Recognizing this damage is essential for technicians to identify and confirm the presence of subterranean termites, allowing for prompt treatment and prevention efforts to mitigate further structural harm. Understanding this characteristic behavior of subterranean termites helps technicians accurately diagnose termite infestations and plan effective pest management strategies.