If you are suspicious that you may have a termite infestation, use Spectracide Terminate Termite Detection and Killing Stakes. The unique pop-up termite indicators let you know if termites have been feeding on the stakes, and feeding termites will take the bait back into the colony and, in theory, kill off the entire termite infestation. The growth inhibitor, hexaflumuron, is mixed in a cellulose bait that termites feed on. It stops them from molting by disrupting chitin or "skin" production, and without a fresh chitin covering, the termites will perish. Hexaflumuron is one of the safest termite treatments available, considered non-toxic to humans or pets, and coupled with the early warning detection spikes, there is nothing better.
If you know you have a termite infestation, inject Premise Foam Termiticide Termite Spray into the tunnels to, theoretically, kill of the entire colony. The active ingredient is imidacloprid which is a nervous system disrupter. The foam flows through the tunnels and expands, coating the inside of the tunnels completely. When termites come in contact with imidacloprid, either by ingestion or by skin contact, this slow acting substance begins to disrupt their nervous system function. It works over the course of days which allows termites to interact with others in the colony, where the imidacloprid is spread through waste removal, grooming and feeding. In this way, much, if not all, of the colony can be wiped out.
If you are looking for a concentrate that can be mixed with water and sprayed where termite infestation occurs, Taurus SC with 9.1 percent Fipronil may be the termite treatment for you. The active ingredient, fipronil, is a slow acting nervous system disrupter. When termites come into contact with it, they carry the residue back to the colony where it is passed on to others through waste removal, feeding, or body to body contact. In this way, it is surmised that an entire colony may be eliminated. If you are treating a large building, this is the most cost effective way to do it. It can be sprayed around known termite tunnels, inside of them, and it can also be used as a barrier to stop them from getting into your woodwork. Care must be taken during application to use a face mask and rubber gloves.
If you want a professional termite treatment kit that is made for do-it-yourself home use, get the Advance Termite Bait System - Pro Kit (20 stations) + Dominion 2L Termite Bait Systems. It uses the neurotoxin imidacloprid in bait stations that you literally "plant" into the soil around your dwelling. the termites ingest the toxic bait and take it back to the colony. It can, potentially, wipe out the entire colony once the termites begin feeding on the bait. The 20 bait stations allow full coverage of virtually any house or home perimeter, they are made of a sweetened cellulose material that termites naturally are attracted to. It even comes with a tool to open the top of the bait stations to refill or replace them. Although expensive, this is the most comprehensive termite treatment kit available.
For termite prevention during and after the infestation has been eradicated, use Bora-Care - 1 Jug Natural Borate Termite Control. In a mix of 1-part water to 1-part Bora-Care, spray all exposed wooden areas and saturate them. If using to control termites, spray into tunnels and around areas where there is known termite activity. Bora-Care is made with borate salts. This ingredient soaks into the wood, and when consumed, it stops the digestion process and the termite literally starves to death. Although it is theoretically possible to destroy an entire termite colony this way, Bora-Care is better used to coat wooden structures to prevent termite infestation. When mixed properly, it will last the life of the wooden structure on to which it is applied.