Growth Rate of Monilinia fructicola Resistant and Sensitive to Benomyl on Potato-Dextrose Agar and on Peach Fruit. R. M. Sonoda, Professor, University of Florida, Institute for Food and Agricultural Sciences, Agricultural Research Center, Fort Pierce 33454. J. M. Ogawa, Professor, Department of Plant Pathology, University of California, Davis 95616. Plant Dis. 66:1155-1156. Accepted for publication 24 March 1982. Copyright 1982 American Phytopathological Society. DOI: 10.1094/PD-66-1155.

Mean radial growth of benomyl-sensitive Monilinia fructicola was faster than benomyl-resistant M. fructicola on peach fruit and on potato-dextrose agar. There was a greater difference in mean growth rate between benomyl-sensitive and benomyl-resistant isolates on peach fruit than on potato-dextrose agar. When the benomyl-sensitive isolates or benomyl-resistant isolates were compared separately, rankings of growth rate on potato-dextrose agar were not correlated with rankings of growth rate on fruit.

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