Abstract
Platypus quercivorus and scolytid beetles were collected on adhesive paper traps that were set on cages containing logs from a Quercus serrata tree that had survived attack, an unattacked tree, and logs from an unattacked tree that were freeze-treated. Only small numbers of males of P. quercivorus were collected on logs from the attacked, surviving tree and the freeze-treated logs (which were split into four parts after 13 days). It was therefore considered that to test the response of male beetles to host tree odor, a larger quantity of logs may be required as an attractant. Scolytid beetles in the tribe Xyleborini were collected most often on the freeze-treated logs.
