Abstract
To clarify the effects of an unidentified fungus infecting oaks and of live and dead log tissue on boring of Platypus quercivorus, the numbers of male beetles landing and galleries produced were assessed for logs of Quercus crispula and Q. serrata either inoculated with the fungus or autoclaved. The number of male beetles collected by adhesive traps set on no-treated logs, fungus-inoculated logs, and autoclaved logs was not different from that collected by the traps set with no materials. The boring of the beetle occurred irrespective of the colonization of the fungus. The number of males collected on autoclaved logs was not different from that on non-autoclaved logs, but males did not bore into autoclaved logs. Thus, males may prefer to bore into logs with living tissue irrespective of the colonization of the fungus.
