Full TGIF Record # 109591
Item 1 of 1
Web URL(s):http://www.bioone.org/doi/pdf/10.1614/WT-03-224R2.1
    Last checked: 03/16/2010
    Requires: PDF Reader
    Access conditions: Item is within a limited access website
Publication Type:
i
Refereed
Author(s):Hart, Stephen E.; Yelverton, Fred; Nelson, Eric K.; Lycan, Darren W.; Henry, Gerald M.
Author Affiliation:Hart: Assistant Professor; Lycan: Program Associate, Department of Plant Biology and Plant Pathology, Rutgers, The State University of New Jersey, Cook College, New Brunswick, New Jersey; Yelverton: Professor; Henry: Graduate Research Assistant, Crop Science Department, North Carolina State University, Raleigh, North Carolina; Nelson: Senior Scientist, The Scotts Company, Gervais, Oregon
Title:Response of glyphosate-resistant and glyphosate-susceptible bentgrass (Agrostis spp.) to postemergence herbicides
Source:Weed Technology. Vol. 19, No. 3, July 2005, p. 549-559.
Publishing Information:Champaign, IL: Weed Science Society of America.
# of Pages:11
Keywords:TIC Keywords: Glyphosate; Herbicide resistance; Agrostis; Postemergence herbicides; Susceptibility; Weed control; Golf greens; Herbicide trials; Comparisons; Cultivar variation
Abstract/Contents:"Studies were conducted in the summer and fall of 2001 in North Brunswick, NJ, and Marion County, Oregon, to evaluate the response of glyphosate-resistant and glysophate-susceptible creeping bentgrass hybrids, colonial bentgrass, redtop, and dryland bentgrass grown as individual plants to postemergence (POST) herbicides. Glyphosate at 1.7 kg ae/ha, glufosinate at 1.7 kg ai/ha, fluazifop-P at 0.3 and 0.4 kg ai/ha, clethodim at 0.3 kg ai/ha, sethoxydim at 0.5 kg ai/ha, and a combination of glyphosate and fluazifop-P were applied 6 wk after planting. Glyphosate provided almost complete control of all susceptible bentgrass species at 4 wk after treatment (WAT). Glufosinate provided 95% or greater control of all bentgrass species at 4 WAT, but regrowth was observed on all species in the summer experiment in Oregon. Fluazifop-P, clethodim, and sethoxydim provided slower control of bentgrass species, which ranged from 38 to 94% at 4 WAT, depending on species, herbicide, and experimental location. By 8 WAT, fluazifop-P at 0.4 kg/ha applied alone or in combination with glyphosate showed the highest levels of control (>90%) across all bentgrass species. Studies were also conducted in 2002 in the spring and summer in North Carolina to evaluate the response of a mature stand of glyphosate-susceptible 'Penncross' creeping bentgrass to POST herbicides. Two applications of glyphosate at 1.7 kg/ha were required to achieve 98% bentgrass control at 8 WAT. Fluazifop-P at 0.4 kg/ha, clethodim at 0.3 kg/ha, and sethoxydim at 0.4 kg/ha exhibited herbicidal activity, but two applications were required to reach (>82%) control of bentgrass 8 WAT. Two sequential applications of clethodim or the combination of glyphosate and fluazifop-P provided 98% control of bentgrass at 8 WAT. Of the other herbicide treatments evaluated, only atrazine and sulfosulfuron provided (>80%) control at 8 WAT. The results of these studies demonstrate that fluazifop-P, clethodim, and sethoxydim have substantial herbicide activity on bentgrass species and may be viable alternatives to glyphosate for control of glyphosate resistant creeping bentgrass and related bentgrass species in areas where they are not wanted. Glufosinate, atrazine, and sulfosulfuron also exhibited substantial herbicidal activity on bentgrass. and further research with these herbicides is warranted."
Language:English
References:46
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hart, S. E., F. Yelverton, E. K. Nelson, D. W. Lycan, and G. M. Henry. 2005. Response of glyphosate-resistant and glyphosate-susceptible bentgrass (Agrostis spp.) to postemergence herbicides. Weed Technol. 19(3):p. 549-559.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=109591
If there are problems with this record, send us feedback about record 109591.
Choices for finding the above item:
Web URL(s):
http://www.bioone.org/doi/pdf/10.1614/WT-03-224R2.1
    Last checked: 03/16/2010
    Requires: PDF Reader
    Access conditions: Item is within a limited access website
Find Item @ MSU
MSU catalog number: SB 610 .W44
Find from within TIC:
   Digitally in TIC by record number.
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)