Drywood termites spend their entire lives inside wood. They construct round “kick holes” in infested wood, through which the fecal pellets are eliminated from the galleries or tunnels. These pellets accumulate in small piles below the kick holes, or will be scattered if the distance between the kick hole and the surface below is of a great distance.
Wood, which has a dull or hollow sound when tapped, should be examined closely. Careful probing may disclose drywood termite galleries.
Drywood termite colonies often develop slowly, therefore, the costs incurred with some control measures may not be warranted. But if you choose not to control, be sure to maintain a monitoring program so you’ll know when and if control becomes necessary.
Control measures would include the removal of infested wood and the application of an insecticidal wood preservative to unpainted or surface-sealed timber.