May 21, 2013 - 08:10 AM
For drywood termites, you have to find the "kick-out" holes where the termites are tossing their wood pellets or "Frass" from. Once you find these kick out holes, take a small drill bit and drill into it. If you find that the drill bit drills into a hollow cavity, then quite possibly you have drilled into a drywood termite gallery. Hopefully, this gallery or tunnel, leads to their nest.
Take Termidor Foam and inject into the gallery through the hole you just drilled. A quick 1 second burst will work. You need to do this for every hole that you find.
If drilling every kickout hole is not possible, then drill every square foot of wall in a checkerboard pattern, and inject Termidor Foam into the wall. Hopefully, this will be enough to contact the termites, or at least cut them off.
With that said, this is considered a spot treatment, and should be considered a spot or localized treatment. It is not a replacement for fumigation, which will kill all termites within the home, but it can be a good remedial treatment, and if nothing else buy "time". In some cases, it can solve the problem. The only way you will know is if you find additional kickout holes, frass or find swarmers next year or in the future.
Your question I think was about Terminate Foam. I don't recommend Terminate Foam for drywood termites. It will not provide the control you need. It is repellent and the termites will avoid it. Use Termidor Foam.
Happy Termite Hunting!