Nonsusceptibility of Wheat and Peanut Cultivars to an Oklahoma Strain of Aster Yellows MLO. D. Errampalli, Department of Plant Pathology, Oklahoma State University, Stillwater 74078. J. Fletcher, Department of Plant Pathology, Oklahoma State University, Stillwater 74078. Plant Dis. 77:953. Accepted for publication 19 April 1993. Copyright 1993 The American Phytopathological Society. DOI: 10.1094/PD-77-0953A.