VIEW ARTICLE

Nonsurvival of Ceratocystis fagacearum in Frass of Oak Bark Beetles and Ambrosia Beetles. J. D. Peplinski, Former Graduate Assistant, Department of Plant Pathology, The Pennsylvania State University, University Park 16802; W. Merrill, Associate Professor, Department of Plant Pathology, The Pennsylvania State University, University Park 16802. Phytopathology 64:1528-1530. Accepted for publication 1 July 1974. DOI: 10.1094/Phyto-64-1528.

Viable propagules of Ceratocystis fagacearum were not detected in the frass of oak bark beetles and ambrosia beetles formed the spring after initial infection and death of red oaks in Pennsylvania. This indicates that wind dissemination of frass-borne propagules is not involved in long-range dissemination of the pathogen, at least in Pennsylvania.