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Weed control in seedling alfalfa

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Authors

W. R. Sallee

Publication Information

California Agriculture 21(4):14-16.

Published April 01, 1967

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Abstract

Pre-emergence herbicides offer the advantage of reducing early competition in seedling alfalfa stands. The disadvantages of present pre-emergence herbicides is that they have to be incorporated, which adds extra expense, and they do not control all of the broad-leaved weeds. Benefin shows promise as a pre-emergence herbicide due to good selectivity in alfalfa and full-season grass control. Post-emergence herbicides have the advantage that treatment is not necessary until the problem exists. The dinitros and 2,4-DB (ester) will control weeds if they are small. Bromoxynil (not presently registered for use on alfalfa) kills a larger number of weeds and larger weeds than the other post-emergence herbicides. With the use of post-emergence herbicides, timing the application when the weeds are small and when most of them have emerged is essential. This report results from three years of trials using pre- and post-emergence applications of various herbicides. This information does not constitute a weed control recommendation by the University of California. For current weed control recommendations, local farm advisors should be consulted.

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Weed control in seedling alfalfa

W. R. Sallee
Webmaster Email: wsuckow@ucanr.edu

Weed control in seedling alfalfa

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. R. Sallee

Publication Information

California Agriculture 21(4):14-16.

Published April 01, 1967

PDF  |  Citation  |  Permissions

Author Affiliations show

Abstract

Pre-emergence herbicides offer the advantage of reducing early competition in seedling alfalfa stands. The disadvantages of present pre-emergence herbicides is that they have to be incorporated, which adds extra expense, and they do not control all of the broad-leaved weeds. Benefin shows promise as a pre-emergence herbicide due to good selectivity in alfalfa and full-season grass control. Post-emergence herbicides have the advantage that treatment is not necessary until the problem exists. The dinitros and 2,4-DB (ester) will control weeds if they are small. Bromoxynil (not presently registered for use on alfalfa) kills a larger number of weeds and larger weeds than the other post-emergence herbicides. With the use of post-emergence herbicides, timing the application when the weeds are small and when most of them have emerged is essential. This report results from three years of trials using pre- and post-emergence applications of various herbicides. This information does not constitute a weed control recommendation by the University of California. For current weed control recommendations, local farm advisors should be consulted.

Full text

Full text is available in PDF.

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