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Potentially serious cotton disease angular leaf spot established in California

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Authors

W. C. Schnathorst, Crops Research Division, Agricultural Research Service, United States Department of Agriculture, Davis.
P. M. Halisky, University of California, Davis.

Publication Information

California Agriculture 14(11):5-6.

Published November 01, 1960

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Abstract

Angular leaf spot of cotton is caused by the bacterium—Xanthomonas malvacearum—which enters the plant through wounds or natural openings. Circular translucent lesions on cotyledons, angular lesions on leaves, systemic infection of leaves, stem lesions, and boll rot—all caused by the pathogen—have been observed in California. Yield of cotton may be affected by the disease indirectly, by stunting and premature defoliation of plants, or directly, by loss of bolls due to boll rot.

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Author notes

R. D. Martin, California Planting Cotton Seed Distributors, Bakersfield, participated in the studies reported in the foregoing article.

Marvin Hoover, Extension Cotton Specialist, University of California, aided in collecting samples from cotton gins.

The above progress report is based on Research Project No. H-1651.

Potentially serious cotton disease angular leaf spot established in California

W. C. Schnathorst, P. M. Halisky
Webmaster Email: bjnoel@ucanr.edu

Potentially serious cotton disease angular leaf spot established in California

Share using any of the popular social networks Share by sending an email Print article
Share using any of the popular social networks Share by sending an email Print article

Authors

W. C. Schnathorst, Crops Research Division, Agricultural Research Service, United States Department of Agriculture, Davis.
P. M. Halisky, University of California, Davis.

Publication Information

California Agriculture 14(11):5-6.

Published November 01, 1960

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Angular leaf spot of cotton is caused by the bacterium—Xanthomonas malvacearum—which enters the plant through wounds or natural openings. Circular translucent lesions on cotyledons, angular lesions on leaves, systemic infection of leaves, stem lesions, and boll rot—all caused by the pathogen—have been observed in California. Yield of cotton may be affected by the disease indirectly, by stunting and premature defoliation of plants, or directly, by loss of bolls due to boll rot.

Full text

Full text is available in PDF.

Author notes

R. D. Martin, California Planting Cotton Seed Distributors, Bakersfield, participated in the studies reported in the foregoing article.

Marvin Hoover, Extension Cotton Specialist, University of California, aided in collecting samples from cotton gins.

The above progress report is based on Research Project No. H-1651.


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