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Tolerance of Asparagus to 2,4–D

Published online by Cambridge University Press:  12 June 2017

V. F. Bruns  and
W. J. Clore
V. F. Bruns
Affiliation:
Field Crops Research Branch, Irrigation Experiment Station, Prosser, Washington
W. J. Clore
Affiliation:
State College of Washingon, Irrigation Experiment Station, Prosser, Washington
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Extract

A number of investigators have tested 2,4–D (2,4–dichlorophenoxyacetic acid) for the control of weeds in asparagus. Several workers (1, 3, 4, 6) have suggested the use of 2,4–D at rates varying from one to three pounds acid equivalent per acre as a pre-emergence treatment after disking in the spring and again after disking at the end of the cutting season. Warren and Hernandez (5) applied 2,4–D at the rate of four pounds per acre on April 28 just after the asparagus bed was disked. The yield and appearance of the asparagus spears was not affected by the treatment. According to Ahlgren et al. (1), pre-emergence application of 2,4–D caused injury to the first emerging spears in some cases, but caused little permanent damage. These and other investigators found asparagus plants susceptible to foliage applications of 2,4–D and warned against spraying the fern.

Type
Research Article
Information
Weeds , Volume 4 , Issue 4 , October 1956 , pp. 393 - 396
Copyright
Copyright © 1956 Weed Science Society of America 

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References

Literature Cited

1. Ahlgren, Gilbert H., Klingman, Glenn C., and Wolf, Dale E. Principles of weed control. John Wiley and Sons, Inc., New York, and Chapman and Hall, Ltd., London, p. 175. 1951.Google Scholar
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