To assess subterranean termite attack potential in the field and seasonal variations, trials were set up in each of two managed silvicultural plantations, of Eucalyptus globulus and Pinus pinaster, respectively. Termite occupancy in lying dead wood was evaluated by an adaptation of the line-intersection method, and attack potential in soil was assessed by a system of stakes inserted into the ground, combined with baits. Occupancy in fallen dead wood was assessed over one year, demonstrating that there were seasonal changes in foraging activity. Baits and stakes were assessed at three month intervals, providing a corresponding measure of the intensity of the foraging activity under ground. The usefulness of this dual characterization of field sites is discussed.

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