Drywood termites live in much smaller colonies than Subterrianean termites, and cause less damage. A typical Drywood termite colony is smaller than 10,000 individual termites. Compare that with a Suberterrianean colony which could have as many as 500,000 termites!
There are two ways to detect the presence of Drywood Termites
-Finding piles of Frass below kick out wholes
-Hollow Sounding wood
Wood that has a dull, hollow sound when tapped should be examined closely. Careful probing with a sharp object like a hunting knife might reveal the presence of tunnels and galleries which the drywood termites have hollowed out as they fed upon the wood. Termites eat “with the grain of the wood”