whts the best method for eliminating dry wood termites?and is the termite sprays "toxic"?

For prevention, Boracare can be used for bare wood. Boracare penetrates into the wood for a thorough termite treatment. If you already have an infestation, Premise foam and Premise 2 can be used for surface treatment. Premise foam expands upon application so it is perfect to use in cracks, crevices, and voids. Although Boracare is made of natural minerals, all termite pesticides are toxic and should be used with precaution. Users should follow all directions on each of the product labels.