Twig, Branch, and Upper Trunk Cankers of Eucalyptus marginata. E. M. Davison, Department of Conservation and Environment, 1, Mount St., Perth, Western Australia 6000. F. C. S. Tay, School of Environmental and Life Sciences, Murdoch University, Murdoch, Western Australia 6150. Plant Dis. 67:1285-1287. Accepted for publication 8 July 1983. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-1285.

Cytospora eucalypticola, Discosporium eucalypti, Endothia havanensis, and Botryosphaeria ribis were associated with twig, branch, and upper trunk cankers of Eucalyptus marginata (jarrah). B. ribis and Endothia havanensis caused lesions in the phloem when inoculated into jarrah coppice and saplings; C. eucalypticola and D. eucalypti persisted in the phloem but did not cause lesions. Limited sampling of cankers on other eucalypts native to or widely grown in Western Australia showed that C. eucalypticola, B. ribis, and E. havanensis have a wide host range.