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Mowing as a Weed Control Supplement to Herbicides and Cultivation in Peanut (Arachis hypogaea L.)

Published online by Cambridge University Press:  12 June 2017

Glenn Wehtje ,
Larry W. Wells ,
James H. Choate ,
Neil R. Martin JR.  and
John M. Curtis
Glenn Wehtje*
Affiliation:
Agronomy and Soils Department, Auburn University, Auburn, AL 36849
Larry W. Wells
Affiliation:
Agronomy and Soils Department, Auburn University, Auburn, AL 36849
James H. Choate
Affiliation:
Agronomy and Soils Department, Auburn University, Auburn, AL 36849
Neil R. Martin JR.
Affiliation:
Department of Agricultural Economics and Rural Sociology, Auburn University, Auburn, AL 36849
John M. Curtis
Affiliation:
Department of Agricultural Economics and Rural Sociology, Auburn University, Auburn, AL 36849
*
Corresponding author's E-mail: [email protected].
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Abstract

A 3-yr field study was conducted in peanut in which weed control systems with varying levels of herbicides, cultivation inputs, or both were supplemented with mowing to remove weeds extending above the crop canopy. Highest yield and net returns were consistently obtained with the highest level of herbicide/cultivation inputs, and mowing was of no value. However, mowing was consistently beneficial to yield and net return when the only other weed control inputs were paraquat and 2,4-DB applied at 4 wk after planting (WAP) and cultivation at 10 WAP. In the absence of any other weed control inputs, mowing was detrimental in a drought stress year, but beneficial in years with near-normal growing conditions. Although disease incidence was aggravated by the lack of weed control inputs, it was generally independent of mowing.

Keywords

2,4-DB, the dimethyl amine salt of 4-(2,4-dichlorophenoxy)butanoic acidparaquat, dichloride salt of 1,1'-dimethyl-4,4'-bipyridinium ionpeanut, Arachis hypogaea L. ‘Florunner.'Alternative weed controldisease occurrencedisease–weed interactionsnet returnsorganic production#ACNHI# CASOB# DEDTOWAP, weeks after planting
Type
Research
Information
Weed Technology , Volume 13 , Issue 1 , March 1999 , pp. 139 - 143
Copyright
Copyright © 1999 by the Weed Science Society of America 

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Footnotes

1

Published as Alabama Agricultural Station Journal Series 3-986767.

References

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