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Daminozide and Senescent Breakdown of McIntosh Apples. E. C. Lougheed, Professor, Department of Horticultural Science, University of Guelph, Guelph, Ontario N1G 2W1. B. D. Ripley, Research Scientist, Ontario Ministry of Agriculture and Food, Pesticide Laboratory, University of Guelph; and S. R. Miller, Superintendent, Agriculture Canada Smithfield Experimental Farm, Box 340, Trenton, Ontario K8V 5R5. Plant Dis. 67:190-191. Accepted for publication 9 July 1982. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-190.

The incidence of senescent breakdown in McIntosh apples after storage was associated with internal daminozide residues resulting from field treatment.