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Improved White Clover Control with Mesotrione by Tank-Mixing Bromoxynil, Carfentrazone, and Simazine

Published online by Cambridge University Press:  20 January 2017

John B. Willis ,
Shawn D. Askew  and
J. Scott McElroy
John B. Willis*
Affiliation:
Department of Plant Pathology, Physiology, and Weed Science, Virginia Polytechnic Institute and State University, 435 Old Glade Road, Blacksburg, VA 24060
Shawn D. Askew
Affiliation:
Department of Plant Pathology, Physiology, and Weed Science, Virginia Polytechnic Institute and State University, 435 Old Glade Road, Blacksburg, VA 24060
J. Scott McElroy
Affiliation:
Department of Plant Sciences, University of Tennessee, Knoxville, TN 37996
*
Corresponding author's E-mail: jbwillis@vt.edu
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Abstract

Mesotrione is under evaluation for registration in turfgrass for weed control, but often requires repeat treatments. Previous research in agricultural crops indicates tank mixtures with mesotrione improve weed control. Greenhouse trials were conducted in Blacksburg, VA, with 7 mo-old white clover, and field trials in Knoxville, TN, evaluated control of 5-yr old white clover in a stand of common bermudagrass. Data from both field and greenhouse trials indicate mesotrione applied in combination with bromoxynil, carfentrazone, or simazine control white clover better than any of these herbicides applied alone. Combinations of bromoxynil, carfentrazone, and simazine with mesotrione also decreased relative chlorophyll index and white clover fresh weights in agreement with visually estimated control.

Keywords

Bromoxynilcarfentrazonemesotrionesimazinewhite clover, Trifolium repens L. TRFREcommon bermudagrass, Cynodon dactylon (L.) Pers. ‘Vamont’Weed controlturfgrassadmixture
Type
Research
Information
Weed Technology , Volume 21 , Issue 3 , September 2007 , pp. 739 - 743
Copyright
Copyright © Weed Science Society of America 

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