Termite probe through the soil until they come in contact with a food source, a process known as "random forging". From their colonies, these foragers can travel as far as 5.4-6.0 metres. Once a food source is located, they build a path to start their system transporting the food back to the colony. In most cases termites never expose themselves to light or open air, making their detection during feeding nearly impossible. Even in crossing over non-soil matter such as concrete, they will build tubes composed of soil particles to keep themselves protected.
To stop the termites "feeding process, DePEST professionals will drill holes in the floor and trench or trench and rod aroung the outside of your house to inject termiticide which should then distribute throughout the soil along the foundation creating a seamless, treated zone.