The present invention is directed to a device for monitoring, detecting and/or controlling subterranean termites comprising an outer housing adapted to be implanted in the ground having a plurality of openings through a side wall of the outer housing for passage of termites through the openings into an interior of the outer housing and a bait cartridge comprising a major amount of a termite edible material and a minor amount of a termite resistant material, wherein the termite edible material comprises at least two different forms of a cellulose containing material and, optionally, a termite-edible sleeve engaged with the side wall of the outer housing and covering at least a portion of said side wall, which sleeve comprises a cellulose containing material having substantially the same form as at least one of the cellulose containing materials from which the bait cartridge is formed.
