Common Bacterial Blight of Bean

  • Ervin H. Barnes


Bacterial blight of bean is a typical leaf spot and leaf blight disease. At first, the lesions on leaves are small, translucent, water-soaked spots which later develop dry brown centers and narrow yellow halos. Lesions coalesce into irregularly-shaped areas which may include the whole leaflet. Lesions on stems and pods tend to be more restricted and sunken (Fig. 7-1A). Those on the pods frequently turn from red to brown with age. With continued development, the vascular system may also turn brown and surface cankers form on the stem.


Leaf Spot Bacterial Blight Bacterial Wilt Brown Pigment Stem Canker 
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Suggested Reading

  1. Grogan, R. G. and Kimble, K. A., “The Role of Seed Contamination in the Transmission of Pseudomonas phaseolicolo in Phaseolus vulgaris” Phytopathology, Vol. 57 (January, 1967), pp. 28-31.Google Scholar
  2. Zaumeyer, W. J., and Thomas, H. R., A Monographic Study of Bean Diseases and Methods for their Control. U. S. Dept. Agr. Tech. Bull., 1957.Google Scholar

Copyright information

© Plenum Press, New York 1979

Authors and Affiliations

  • Ervin H. Barnes
    • 1
  1. 1.Michigan State UniversityUSA

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