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Bacterial Blight of Chickpea Incited by Pseudomonas andropogonis. F. L. Caruso, Department of Botany and Plant Pathology, University of Maine, Orono 04469. . Plant Dis. 68:910-913. Accepted for publication 21 May 1984. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-910.

Stem cankers, leaf spots, and dieback were observed on field-grown chickpeas in Maine in 1981. The causal organism was a white-pigmented, rod-shaped, gram-negative, nonfluorescent bacterium. Twenty strains induced symptoms on alfalfa, corn, soybean, sudangrass, white clover, and chickpea in a host-range study. Of 28 chickpea cultivars tested, all were susceptible to the disease. On the basis of comparisons with type strains, the causal organism was identified as Pseudomonas andropogonis. This is believed to be the first report of this bacterium in chickpea in the United States.