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Distribution of pear decline virus in California orchards

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Authors

J. F. Doyle, Sun Joaquin Valley Agricultural Research and Extension Center, Parlier
H. J. O'reilly, U. C. Davis, Dept. of Agriculture, Victoria, B. C., Canada
G. Nyland, Dept. of Plant Pathology, U.C. Davis
B. Bearden, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
R. Bethell, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
C. Hemstreet, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
G. Morehead, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
S. Sibbett, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties

Publication Information

California Agriculture 24(6):14-15.

Published June 01, 1970

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Abstract

Pear decline virus is present in both healthy and weak appearing pear trees on all common rootstocks in commercial orchards in California. Vigorous condition of any tree probably results from true tolerance of the rootstock to the disease rather than the chance that it may have escaped infection. Research suggests a possible relationship between pear leaf curl and pear decline.

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Distribution of pear decline virus in California orchards

J. F. Doyle, H. J. O'reilly, G. Nyland, B. Bearden, R. Bethell, C. Hemstreet, G. Morehead, S. Sibbett
Webmaster Email: wsuckow@ucanr.edu

Distribution of pear decline virus in California orchards

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

J. F. Doyle, Sun Joaquin Valley Agricultural Research and Extension Center, Parlier
H. J. O'reilly, U. C. Davis, Dept. of Agriculture, Victoria, B. C., Canada
G. Nyland, Dept. of Plant Pathology, U.C. Davis
B. Bearden, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
R. Bethell, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
C. Hemstreet, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
G. Morehead, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties
S. Sibbett, Mendocino, El Dorado, Lake, Sacramento and Tulare Counties

Publication Information

California Agriculture 24(6):14-15.

Published June 01, 1970

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Pear decline virus is present in both healthy and weak appearing pear trees on all common rootstocks in commercial orchards in California. Vigorous condition of any tree probably results from true tolerance of the rootstock to the disease rather than the chance that it may have escaped infection. Research suggests a possible relationship between pear leaf curl and pear decline.

Full text

Full text is available in PDF.

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