Disease Losses in North Carolina Forests: II. Losses in Hardwoods, 1973–1974. W. R. Jacobi, Graduate Research Assistant, Department of Plant Pathology, North Carolina State University, Raleigh 27650. E. B. Cowling, Associate Dean, School of Forest Resources, North Carolina State University, Raleigh 27650; and N. D. Cost, Resource Analyst, and J. P. McClure, Principal Resource Analyst, Southeastern Forest Experiment Station, Asheville, NC 28802. Plant Dis. 64:576-578. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1980. DOI: 10.1094/PD-64-576.

A survey of hardwoods in North Carolina showed many species to be in poor health. A few, such as yellow poplar and white oak, were relatively healthy (80–90% of trees free from damage) and many others, notably red maple, lowland black gum, sweetbay, black locust, and black walnut, were less healthy (59–75% of trees free from damage). Heart rot and poor form accounted for most damage to hardwoods. Diffuse-porous hardwoods showed a greater incidence of heart rot than ring-porous species; this difference was most conspicuous in the coastal plain region of the state. The amount of cull associated with heart rot was greatest in trees with “other basal defects” and top breaks. Canker diseases caused moderate (1–2%) damage throughout the state.