White pine occurs throughout all of PA, with particular presence in the north-central. The following may be of interest.
Thanks to Karen Bennett, University of New Hampshire Extension, for sharing this.
This new publication provides guidance for identifying and evaluating health problems of eastern white pine. Pests include white pine weevil, blister rust, bast scale, white pine needle damage, caliciopsis canker, and red rot or red-ring rot. And outlines silvicultural practices to reduce health risks and improve productivity and quality at various stages of stand management.
Forestry State Specialist