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Root-lesion nematode on walnut: Replants of California black walnut and unselected Paradox hybrid responded to preplanting soil fumigation in trials

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Authors

B. F. Lownsbery, University of California
S. A. Sher, University of California

Publication Information

California Agriculture 12(5):7-12.

Published May 01, 1958

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Abstract

Infestations of root-lesion nematodes—Pratylenchus vulnus—occur in all important walnut growing areas in California and high population densities cause a disease of economic importance. The disease is characterized by stunting, die-back, and chlorosis in the tops of the trees; by yield reduction; and by root symptoms consisting of black lesions, longitudinal cracking, and even death of entire roots. The disease has been induced experimentally by adding a suspension of the root-lesion nematodes to California black walnut seedlings.

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Author notes

Fred M. Charles, Farm Advisor, San Joaquin County, University of California, participated in this work.

Root-lesion nematode on walnut: Replants of California black walnut and unselected Paradox hybrid responded to preplanting soil fumigation in trials

B. F. Lownsbery, S. A. Sher
Webmaster Email: wsuckow@ucanr.edu

Root-lesion nematode on walnut: Replants of California black walnut and unselected Paradox hybrid responded to preplanting soil fumigation in trials

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

B. F. Lownsbery, University of California
S. A. Sher, University of California

Publication Information

California Agriculture 12(5):7-12.

Published May 01, 1958

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Infestations of root-lesion nematodes—Pratylenchus vulnus—occur in all important walnut growing areas in California and high population densities cause a disease of economic importance. The disease is characterized by stunting, die-back, and chlorosis in the tops of the trees; by yield reduction; and by root symptoms consisting of black lesions, longitudinal cracking, and even death of entire roots. The disease has been induced experimentally by adding a suspension of the root-lesion nematodes to California black walnut seedlings.

Full text

Full text is available in PDF.

Author notes

Fred M. Charles, Farm Advisor, San Joaquin County, University of California, participated in this work.


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