You need to drill and treat slabs or the voids in foundation and piers. This part of the treatment requires specialized equipment and training to avoid injuries or damage to underground utility lines or to the masonry. Although you could skip this part of the work, an incomplete treatment may not solve the problem and may leave your house vulnerable to future termite attack . There are situations where a conventional termite treatment may be difficult, undesirable, or even impossible. Some situations call require special handling, others may require alternative approaches.
Liquid treatment is considered unacceptable for whatever reason.
In these situations, there are few alternatives such as termite baits or mechanical control. One possible alternative to any soil treatment is the use of wood treatments. This borax-based chemical is applied to critical wood components in the crawlspace and parts of the framing in a house under construction. Data provided by product manufacturers indicate that termites do not extend their tubes over treated wood nor do they cause any structural damage. Chemicals that are suitable as wood treatments are listed in the current edition of the NC Agricultural Chemicals Manual .