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Causes of Apple Tree Death in Henderson County, North Carolina. T. B. Sutton, Assistant Professor, Department of Plant Pathology, North Carolina State University, Raleigh 27650. D. W. Hayne, Professor, Department of Statistics and Zoology, W. T. Sullivan, Jr., Research Assistant, Department of Zoology, J. F. Nardacci, Research Assistant, Department of Plant Pathology, and D. E. Klimstra, Research Assistant, Department of Entomology, North Carolina State University, Raleigh 27650. Plant Dis. 65:330-332. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-330.

Apple tree mortality in Henderson County, North Carolina, was approximately 1% a year from 1976 to 1979. Vole injury accounted for about half the losses, plant pathogens for about 40%, and insects for less than 2%. Collar rot (Phytophthora spp.) and white root rot (Corticium galactinum) were the most important root rot diseases.