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Association of Mycoplasmalike Bodies with Little Peach and X-Disease. A. L. Jones, Associate Professor, Department of Botany and Plant Pathology, Michigan State University, East Lansing 48823; G. R. Hooper(2), and D. A. Rosenberger(3). (2)Director Electron Optics Laboratory and Associate Professor, Department of Entomology, Michigan State University, East Lansing 48823; (3)Research Assistant, Department of Botany and Plant Pathology, Michigan State University, East Lansing 48823. Phytopathology 64:755-756. DOI: 10.1094/Phyto-64-755.

Mycoplasmalike bodies (MLB) were found in leaves of peach trees exhibiting little peach symptoms taken from 5 of 6 orchards, and in leaves from peach, sour cherry, and chokecherry with X-disease symptoms. The MLB were found more consistently in little peach leaf samples and in pedicel and leaf samples from X-disease-infected sour cherry than in X-disease-infected peach leaves. The MLB in sour cherry, peach, and chokecherry were morphologically similar to those reported for peach Western X-disease and were more elongate than those in little-peach-infected tissues.