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Bundleflower (Desmanthus bicornutus) Response to Postemergence Herbicides

Published online by Cambridge University Press:  20 January 2017

W. James Grichar  and
W. R. Ocumpaugh
W. James Grichar*
Affiliation:
Texas Agricultural Experiment Station, 3507 Hwy 59E, Beeville, TX 78102
W. R. Ocumpaugh
Affiliation:
Texas Agricultural Experiment Station, 3507 Hwy 59E, Beeville, TX 78102
*
Corresponding author's E-mail: w-grichar@tamu.edu
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Abstract

Field studies were conducted from 2003 through 2006 to evaluate bundleflower tolerance to several postemergence (POST) herbicides commonly used in pastures. All herbicides except imazapic, metsulfuron, and 2,4-DB injured bundleflower at least 88% when rated 4 wk after treatment (WAT). When rated 8 WAT, metsulfuron, picloram, and picloram plus 2,4-D injured bundleflower greater than 90%. Imazapic stunted bundleflower (10 to 35% injury) throughout the growing season. When rated 52 WAT, dicamba plus 2,4-D, picloram alone, and picloram plus 2,4-D injured bundleflower at least 97% in one of two years. Emergence of bundleflower with picloram-containing treatments ranged from 16 to 67% of the nontreated control, whereas emergence after dicamba-containing treatments ranged from 67 to 97%.

Keywords

Dicambaglyphosateimazapicmetsulfuronpicloram2,4-Dbundleflower, Desmanthus bicornutus S. Watson ‘BeeTAM-06’, ‘BeeTAM-08’, ‘BeeTAM-37’, ‘BeeTAM-57’Auxinic herbicidesbundleflower injuryherbicide toleranceseedling emergence
Type
Notes
Information
Weed Technology , Volume 21 , Issue 4 , December 2007 , pp. 1089 - 1092
Copyright
Copyright © Weed Science Society of America 

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