Methods, systems and detection devices particularly for pest control.

A device 310 of pest control, comprising: a circuit 353 including a plurality of sensor elements 354 coupled electrically separated from each other and arranged to be consumed or displaced by one or more pests, each corresponding sensor elements 354 a different one of a number of electrically resistive pathways, answering circuit for altering one or more of the sensing elements to provide information representative of a degree of consumption or displacement of the pest.