Association of Diplodia pinea with a Root Disease of Pines in South Africa. M. J. Wingfield, Plant Pathologist, Plant Protection Research Institute, Private Bag ×5017. P. S. Knox-Davies, Professor of Plant Pathology, University of Stellenbosch, Stellenbosch, 7600 South Africa. Plant Dis. 64:221-223. Accepted for publication 17 September 1979. Copyright 1980 American Phytopathological Society. DOI: 10.1094/PD-64-221.

Diplodia pinea is an important factor in a root disease of Pinus elliottii and P. taeda in various parts of South Africa and Swaziland. All stands in which the disease occurred were severely stressed.