This process is usually implemented in conjunction with termite monitoring after termites are eradicated from the property. Typically it comes with a rounded plastic material with a cover set in a station. It contains material like timber to attract termites. Baiting is carried out when these stations are discovered by termites.
Keeping the termites together and acting as a protector is the chitin which comprises the exoskeleton. In order to accommodate the growth of their colony, they need to shed their exoskeleton throughout their lifetime. To halt the termite to grow new skin, termite bait toxicants are a chitin inhibitor. This toxicant is usually ground cellulose that is easy for the termites to bite and digest then share it with the colony.
Because not all termites will reach the baiting station, the process relies on Trophallaxus, the method of transferring food or fluids within the colony through mouth or anus. Over the time when all members are affected by the transfer of the toxicants and health of the colony quickly declines, his will lead to their total destruction.
Source: http://www.pestec.com.au/Nemesis-termite-baiting – Site for the leading pest management company, Pestec. They provide different approaches to termite control for home owners in Sydney.