Wood is the perfect place for drywood termites go prosper as its low moisture content suits them well. Even without having contact with soil, they can survive for long periods. If male and female termites make their way into a piece of wooden furniture, they are sure to excavate a chamber for laying eggs. Imagine the extent of the damage being done by drywood termites.
The most effective way to deal with a drywood termite infestation is fumigation. Of course, only specialists can resort to the fumigation method. Specialists either use sulfur fluoride or methyl bromide gas, which upon penetrating the structure depletes the oxygen level and replaces it with deadly gas. This is how drywood termites are dealt with.