Mar 15, 2019 - 03:15 AM
The only way to spot treat Drywood termites is to find the kickout holes where the "frass" or pellets is falling from. You can then either inject these holes with D-Force or try saturing the wood with Timbor. Timbor can be sprayed or dusted onto the wood, and also injected into the kickout holes. In most cases, a small 1/8" hole may need to be drilled into the kickout hole to widen it to allow for the injection of the D-Force or the Timbor. In either case, permeating the galleries of the termites within the wood is critical. If you don't get the materials into the galleries, you won't kill the termites.
The only other option is tent fumigation. In my opinion, no other treatment works. The Electrogun, Orange Oil, etc are totally overated and not worth the money. Either direct injection of chemicals into the kickout holes to kill them or fumigate it.
There may be lots of kickout holes, so this may take some time. Be patient and you might just solve the problem.