Two Methods for Distinguishing Powderpost, Deathwatch, and False Powderpost Beetles. 1 Insert the tip of a click-type refillable ballpoint pen into the exit hole of the beetle. To determine the texture of frass, a mixture of feces and food fragments, rub the frass between your fingers. Prevention is the best management method. Protective measures should be taken at every stage of lumber processing and handling including lumber mills, plywood mills, lumber yards, furniture manufacturing factories, and building construction firms.
Sanitation is the most important aspect of prevention.
Remove and destroy dead tree limbs around buildings or near any area where wood products are stored. Destroy scrap lumber and other wood products before they become infested. Kiln drying of lumber destroys beetle infestations, although it does not prevent reinfestation. Materials used for construction of buildings and wood furniture should be thoroughly inspected before use to be certain that they do not contain wood-boring beetles. Protect wood from infestation by painting or varnishing to seal pores, cracks, and holes where eggs could be laid.