University of California
Dev Test!

Calag Archive

Calag Archive

Mallet wound canker of almond trees

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

James E. Devay, University of California, Davis.
Harley English, University of California, Davis.
F. L. Lukezic, Plant Pathology Department, University of California, Davis.
H. J. O'Reilly, University of California, Davis.

Publication Information

California Agriculture 14(8):8-9.

Published August 01, 1960

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Limb cankers that expand rapidly and often girdle and kill major limbs within three or four years are reported to be of increasing incidence in California almond orchards. One or several limbs may be attacked in a single season. Where the condition continues, the trees must be severely pruned or removed. The cankers are typified by a depression of the infected tissues and the production of an orange, frothy gum. The disease is frequently found in the Winters, Chico, and Rumsey areas and occasionally as far south as Stanislaus County. The Texas (Mission) variety is most susceptible to the cankers, as measured by the girdling and killing of branches, but Nonpareil, Peerless, and Ne Plus Ultra are often severely damaged. The Drake variety is less susceptible, and cankers on these trees apparently expand more slowly than the cankers on trees of the other varieties.

Full text

Full text is available in PDF.

Author notes

Almond growers Carmello Ramos and George Crum of the Winters area, Frank Schnell of Chico, and Farm Advisors Dave Holmberg of Yolo County and Clem Meith of Butte County cooperated in the studies reported.

The above progress report is based on Research Project No. H1714.

Mallet wound canker of almond trees

James E. Devay, Harley English, F. L. Lukezic, H. J. O'Reilly
Webmaster Email: bjnoel@ucanr.edu

Mallet wound canker of almond trees

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

James E. Devay, University of California, Davis.
Harley English, University of California, Davis.
F. L. Lukezic, Plant Pathology Department, University of California, Davis.
H. J. O'Reilly, University of California, Davis.

Publication Information

California Agriculture 14(8):8-9.

Published August 01, 1960

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Limb cankers that expand rapidly and often girdle and kill major limbs within three or four years are reported to be of increasing incidence in California almond orchards. One or several limbs may be attacked in a single season. Where the condition continues, the trees must be severely pruned or removed. The cankers are typified by a depression of the infected tissues and the production of an orange, frothy gum. The disease is frequently found in the Winters, Chico, and Rumsey areas and occasionally as far south as Stanislaus County. The Texas (Mission) variety is most susceptible to the cankers, as measured by the girdling and killing of branches, but Nonpareil, Peerless, and Ne Plus Ultra are often severely damaged. The Drake variety is less susceptible, and cankers on these trees apparently expand more slowly than the cankers on trees of the other varieties.

Full text

Full text is available in PDF.

Author notes

Almond growers Carmello Ramos and George Crum of the Winters area, Frank Schnell of Chico, and Farm Advisors Dave Holmberg of Yolo County and Clem Meith of Butte County cooperated in the studies reported.

The above progress report is based on Research Project No. H1714.


University of California, 2801 Second Street, Room 184, Davis, CA, 95618
Email: calag@ucanr.edu | Phone: (530) 750-1223 | Fax: (510) 665-3427
Website: https://calag.ucanr.edu