California Agriculture
California Agriculture
California Agriculture
University of California
California Agriculture

Archive

Progress report on Johnsongrass control in 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

C. L. Elmore, Agricultural Extension Service
A. H. Lange, U. C., Riverside
L. L. Buschmann
R. B. Jeter
J. J. Smith

Publication Information

California Agriculture 21(5):6-7.

Published May 01, 1967

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Johnsongrass, Sorghum halepense, is the most serious perennial weed control problem in California orchards. This fast-growing, warm-season weed propagates prolifically from seed and underground rhizomes. The fleshy underground stems provide the necessary overwintering mechanism by which this plant gets an early start in competing with crop plants, as well as other weeds. In established trees and in young, producing orchards, competition from Johnsongrass may reduce nutrients, moisture, and light. In a field test at the Kearney Field Station, Fresno County, Johnsongrass seedlings were controlled in the nursery row with various soil-persistent herbicides. MSMA is not currently registered (or recommended by University of California) for orchard use. Dalapon is not registered for use on walnuts or almonds.

Full text

Full text is available in PDF.

Author notes

Photos by Tracy Borland. Cooperators and contributors to this study included B. Fischer, L. Brown, T. Aldrich, H. Kempen, L. Hendricks, C. Hemstreet, N. Ross, L. Smith, J. Yeager, D. Bayer, and W. B. McHenry

Progress report on Johnsongrass control in orchards

C. L. Elmore, A. H. Lange, L. L. Buschmann, R. B. Jeter, J. J. Smith
Webmaster Email: wsuckow@ucanr.edu

Progress report on Johnsongrass control in 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

C. L. Elmore, Agricultural Extension Service
A. H. Lange, U. C., Riverside
L. L. Buschmann
R. B. Jeter
J. J. Smith

Publication Information

California Agriculture 21(5):6-7.

Published May 01, 1967

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Johnsongrass, Sorghum halepense, is the most serious perennial weed control problem in California orchards. This fast-growing, warm-season weed propagates prolifically from seed and underground rhizomes. The fleshy underground stems provide the necessary overwintering mechanism by which this plant gets an early start in competing with crop plants, as well as other weeds. In established trees and in young, producing orchards, competition from Johnsongrass may reduce nutrients, moisture, and light. In a field test at the Kearney Field Station, Fresno County, Johnsongrass seedlings were controlled in the nursery row with various soil-persistent herbicides. MSMA is not currently registered (or recommended by University of California) for orchard use. Dalapon is not registered for use on walnuts or almonds.

Full text

Full text is available in PDF.

Author notes

Photos by Tracy Borland. Cooperators and contributors to this study included B. Fischer, L. Brown, T. Aldrich, H. Kempen, L. Hendricks, C. Hemstreet, N. Ross, L. Smith, J. Yeager, D. Bayer, and W. B. McHenry


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