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Disease Note

First Report of Downy Mildew of Sunflower in Greece. C. C. Thanassoulopoulos, Aristotelian University, Faculty of Agriculture, Plant Pathology Laboratory, 540 06 Thessaloniki, Greece. C. B. Mappas, Aristotelian University, Faculty of Agriculture, Plant Pathology Laboratory, 540 06 Thessaloniki, Greece. Plant Dis. 76:539. Accepted for publication 26 October 1991. Copyright 1992 The American Phytopathological Society. DOI: 10.1094/PD-76-0539B.