Resistance and Seed Infection in Three Dry Bean Cultivars Exposed to a Halo Blight Epidemic. M. J. Katherman, Department of Plant Pathology, Cornell University, Ithaca, NY 14853. R. E. Wilkinson, and S. V. Beer, Department of Plant Pathology, Cornell University, Ithaca, NY 14853. Plant Dis. 64:857-859. Copyright 1980 American Phytopathological Society. DOI: 10.1094/PD-64-857.

Seeds from plants of the dry bean cultivars California Light Red Kidney, Redkloud, and Redkote, which had been exposed to a natural epidemic of halo blight, were harvested and assayed for the presence of Pseudomonas phaseolicola. Seed of the more susceptible cultivar California Light Red Kidney was infected and infested with the pathogen. Redkloud seed was only infested, and no P. phaseolicola was recovered from Redkote seed. These data suggest that a direct relationship exists between the susceptibility of a cultivar to halo blight and the likelihood of seed contamination by P. phaseolicola.