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Disease Note: Spread of Stony Pit of Pear Cultivar Bosc in Ontario. W. R. Allen, Agriculture Canada, Research Station, Vineland Station, Ontario, Canada L0R 2E0. N. Greig, Agriculture Canada, Research Station, Vineland Station, Ontario, Canada L0R 2E0. Plant Dis. 77:210. Accepted for publication 20 October 1992. Copyright 1993 The American Phytopathological Society. DOI: 10.1094/PD-77-0210E. |