Fruit Decays of Peach and Apple Caused by Phomopsis mali. D. A. Rosenberger, Assistant Professor of Plant Pathology, New York State Agricultural Experiment Station, Geneva 14456. T. J. Burr, Assistant Professor of Plant Pathology, New York State Agricultural Experiment Station, Geneva 14456. Plant Dis. 66:1073-1075. Accepted for publication 4 June 1982. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-1073.

Cultures of Phomopsis mali were obtained from peach fruit with sunken, black lesions at harvest and from unwounded apple fruit that had developed a light brown, water-soaked core rot during controlled-atmosphere storage. Both the apple and peach isolates of P. mali caused extensive decay when inoculated into mature apple and peach fruit, but grape isolates of P. viticola did not. This is the first report of an apple core rot caused by Phomopsis mali.

Keyword(s): Diaporthe eres, D. perniciosa, moldy core.