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Bacterial brown spot, caused by Pseudomonas syringae pv. syringae , caused epidemics on dry beans ( Phaseolus vulgaris ) on the Transvaal Highveld in South Africa during 1992. Crop losses of up to 55% were reported in plantings of the dry bean cultivar Bonus. The pathogen was detected in commercial seed stocks.
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J. J. Serfontein (1994) studied this question.
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