A pest control system for tracking and locating the nest of the pest to improve the efficiency of pest control. The pest control system comprising a detector for detecting pests which have consumed a conducting tracking material； the detector comprising a sensing head comprising an electrical conductance loop； and a pest sensing circuit configured to sense the electrical continuity of the presence of the conducting tracking material to generate a first pest signal and comprising at least one indicator configured to indicate the first pest signal received from the sensing head. The pest control system also comprises a sensor probe comprising a body configured for inserting into a substrate to indicate the presence of a pest colony； and at least one sensor electrically connected to the pest sensing circuit and configured to generate a second pest signal to be indicated on the at least one indicator.
