Full TGIF Record # 83649
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Publication Type:
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Content Type:Abstract or Summary only
Author(s):McElroy, J. S.; Yelverton, F. H.; Warren, L. S.
Author Affiliation:North Carolina State University, Raleigh, North Carolina
Title:Differential control of Kyllinga spp. at fairway and rough mowing heights
Section:Weed management in turf, pasture, and rangeland
Other records with the "Weed management in turf, pasture, and rangeland" Section
Meeting Info.:55th Annual Meeting, Atlanta, GA: January 28-30, 2002
Source:Southern Weed Science Society Proceedings. Vol. 55, 2002, p. 66.
Publishing Information:Champaign, IL: Southern Weed Science Society.
# of Pages:1
Abstract/Contents:"Kyllinga brevifolia (green kyllinga) and K. gracillima (false-green kyllinga) are rhizomatous, perennial sedge species that thrive as weeds in golf course fairways and roughs. Both species are simialar in appearance and difficult to distinguish under mowed conditions. While, control of K. brevifolia has been reported, little information is available for either of these species at fairway and rough mowing heights. Studies were initiated May 2001 to evaluate POST herbicides for control of both species at fairway (0.5 in) and rough (1.5 in) mowing heights. Four separate locations were selected to represent both species at fairway and rough mowing height. Treatments (lb ai/A) included: Single and sequential applications of msma (2.0), bentazon (1.0), halosulfuron (0.062), trifloxysulfuron (0.022), single applications of sulfentrazone (0.375 and 0.5), and single applications of imazaquin alone (0.5) and imazaquin (0.5) plus msma (2.0). Sequential applications of trifloxysulfuron and imazaquin came 6 weeks after inital treatment (WAIT). Sequential applications of msma and bentazon came 1 WAIT. Treatments with adjuvants were: halosulfuron (0.5% v/v non-ionic surfactant), imazaquin along and trifloxysulfuron (0.25% v/v non-ionic surfactant), and bentazon (1 qt/A crop oil concentrate). In general, K. gracillima at rough height was more difficult to control. At 18 WAIT, sequential applications of trifloxysulfuron provided > 90% control of both species at both mowing heights. Single applications of trifloxysulfuron provided <60% control for rough height K. gracillima, but >90% for other locations. Single and sequential applications of halosulfuron provided 60-90% control at all locations 18 WAIT, except for single applications on rough height K. gracillima~20%). Imazaquin alone provided 85 to 92% control of all locations except for rough height K. gracillima. No differences were detected between imazaquin alone vs. imazaquin plus msma at any location. Sulfentrazone, 0.375 and 0.5, provided 86 to 93% control at all locations except rough height K. gracillima (40 & 58%, respectively). No differences were detected between sulfentrazone rates at any location. All msma and bentazon treatments provided unacceptable control 18 WAIT at all locations."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McElroy, J. S., F. H. Yelverton, and L. S. Warren. 2002. Differential control of Kyllinga spp. at fairway and rough mowing heights. South. Weed Sci. Soc. Proc. 55:p. 66.
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MSU catalog number: SB 611 .S6 v.54
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