Phytophthora Root Rot of Balsam Fir and Norway Spruce in North Carolina. C. M. Kenerley, Department of Plant Pathology, North Carolina State University, Raleigh 27650. R. I. Bruck, Department of Plant Pathology, North Carolina State University, Raleigh 27650. Plant Dis. 65:614-615. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-614.

Phytophthora cinnamomi incited a root rot of balsam fir and Norway spruce in nursery beds in western North Carolina. This represents the first report of P. cinnamomi on balsam fir and the first observation on Norway spruce in North Carolina. Virtually all conifer species grown in western North Carolina for the Christmas tree market are susceptible to this pathogen.