Nectria cinnabarina: The Cause of a Canker Disease of Honey Locust in Minnesota. P. J. Bedker, Graduate Student, Department of Plant Pathology, University of Minnesota, St. Paul 55108. R. A. Blanchette, Assistant Professor, and D. W. French, Department Head and Professor, Department of Plant Pathology, University of Minnesota, St. Paul 55108. Plant Dis. 66:1067-1070. Accepted for publication 12 July 1982. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-1067.

Nectria cinnabarina was determined to be the causal organism of a canker disease of honey locust (Gleditsia triacanthos) in Minnesota by using field pathogenicity tests. Surveys were made throughout the Minneapolis-St. Paul area. The highest incidence of the disease was observed in a tree nursery. Cankers were especially important on clones derived from G. triacanthos var. inermis, which is commonly planted in Minnesota.

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