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Star-of-Bethlehem (Ornithogalum umbellatum) Control with Postemergence Herbicides in Dormant Bermudagrass (Cynodon dactylon) Turf

Published online by Cambridge University Press:  20 January 2017

Christopher L. Main ,
Darren K. Robinson ,
Travis C. Teuton  and
Thomas C. Mueller
Christopher L. Main*
Affiliation:
Department of Plant Sciences, University of Tennessee, 2431 Joe Johnson Drive, 252 Ellington Plant Sciences Building, Knoxville, TN 37996
Darren K. Robinson
Affiliation:
Department of Plant Sciences, University of Tennessee, 2431 Joe Johnson Drive, 252 Ellington Plant Sciences Building, Knoxville, TN 37996
Travis C. Teuton
Affiliation:
Department of Plant Sciences, University of Tennessee, 2431 Joe Johnson Drive, 252 Ellington Plant Sciences Building, Knoxville, TN 37996
Thomas C. Mueller
Affiliation:
Department of Plant Sciences, University of Tennessee, 2431 Joe Johnson Drive, 252 Ellington Plant Sciences Building, Knoxville, TN 37996
*
Corresponding author's E-mail: [email protected]
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Abstract

Field studies were conducted near Knoxville, TN, during late March and early April 2002 and 2003, respectively, for star-of-Bethlehem control in dormant bermudagrass turf that was established over 25 yr ago. Halosulfuron, imazaquin, metsulfuron, 2,4-D plus dicamba plus mecoprop, and triclopyr plus clopyralid controlled star-of-Bethlehem 35% at most 35 d after treatment (DAT). Bromoxynil alone or mixed with halosulfuron, imazaquin, or metsulfuron controlled star-of-Bethlehem at least 80% at 35 DAT. Imazaquin and imazaquin plus bromoxynil injured bermudagrass 51% 35 DAT. This injury was characterized by decreased bermudagrass postdormancy transition and was transient.

Keywords

Bromoxynilclopyralid2,4-Ddicambahalosulfuronimazaquinmecopropmetsulfurontriclopyrcommon bermudagrass, Cynodon dactylon (L.) Pers. #3 CYNDAstar-of-Bethlehem, Ornithogalum umbellatum L. # OTGUMGlyphosategolf coursepostdormancy transitionDAT, days after treatment.
Type
Note
Information
Weed Technology , Volume 18 , Issue 4 , December 2004 , pp. 1117 - 1119
Copyright
Copyright © Weed Science Society of America 

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