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Green Peanut Tolerance to Preemergence and Postemergence Herbicides

Published online by Cambridge University Press:  20 January 2017

Travis C. Teuton*
Affiliation:
Department of Agronomy, University of Florida, Gainesville, FL 32611
Christopher L. Main
Affiliation:
Department of Agronomy, University of Florida, Gainesville, FL 32611
Gregory E. MacDonald
Affiliation:
Department of Agronomy, University of Florida, Gainesville, FL 32611
Joyce Tredaway Ducar
Affiliation:
Department of Animal and Plant Sciences, Berry College, Mt. Berry, GA 30149
Barry J. Brecke
Affiliation:
University of Florida West Florida Research and Education Center, Milton, FL 32583
*
Corresponding author's E-mail: tteuton@utk.edu

Abstract

Field studies were conducted near Sparr, FL, in 2001 and 2002 to evaluate the response of ‘Valencia 102’ grown for the green peanut market (or boiling peanut) to preemergence (PRE) and postemergence (POST) applications of herbicides registered for dry peanut production (roasted market). Green peanut exhibited excellent tolerance to most PRE and POST treatments. There was minimal injury (8%) from flumioxazin applications when evaluated early season in both years, and peanut quickly recovered. Norflurazon caused chlorosis to peanut foliage (23%) in both years. Yield reduction was observed in 2001 for flumioxazin (15%), metolachlor (20%), and norflurazon (41%) compared with the untreated control. However, there were no yield reductions for any of the PRE treatments in 2002. Bentazon + paraquat early postemergence (EPOST) followed by (fb) 2,4-DB POST, bentazon + paraquat EPOST fb clethodim POST, and imazapic EPOST caused ≤5% injury and had no effect on yield in either year.

Type
Research
Copyright
Copyright © Weed Science Society of America 

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Footnotes

Current address: University of Tennessee, 2431 Joe Johnson Drive, 252 Ellington Building, Knoxville, TN 37996
∗ Publication R-09626 Florida Agricultural Experiment Station Journal Series.

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