Abstract: A system for detecting and monitoring termite infestation includes cover assembly having top and bottom plates having axially aligned apertures and linked by a threaded bolt, and bore gasket disposed between the plates. Bottom plates have additional apertures. Top plates have protruding dimples with nonslip surface and coating, tapered apertures therethrough, and plugs or, alternatively, an essentially flat top surface and areas of reduced thickness. An alternative cover assembly includes a top having a top disc portion with an axially aligned aperture therethrough and protruding dimples with tapered apertures and a cylinder portion, axially disposed downward therefrom and having retaining ridges encircling its exterior surface and rows of teeth axially disposed upon its inner surface; and a bottom cup in the shape of a tapered cylinder having a bottom covering, the bottom cup having an axially aligned aperture therethrough, additional apertures, and teeth axially disposed on the exterior surface thereof.

Abstract: A tamper resistant cover assembly for sealing bait access openings formed through buildings, concrete slabs, sidewalks, driveways, patios, parking lots, other similar structures, and trees, which structures and trees would ordinarily prevent direct access to sources of termite infestation. The tamper resistant cover assembly has a circumferentially expandable rubber bore gasket axially compressible between a top plate and a bottom plate. Axial compression is provided by screw means and causes circumferential expansion of the rubber gasket to seal the access openings. In a preferred embodiment, a tamper resistant bolt or screw is provided to create a flat top surface and to reduce the likelihood of cover assembly removal unless special tools are used. The cover assembly also allows for substantial separation of the cover assembly and the bait.