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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2002_vol56.pdf#page=110
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hart, S. E.;
Lycan, D. W.;
Faletti, M.;
Nelson, E. K.;
Marquez, G. |
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| Author Affiliation: | Hart, Lycan: Rutgers University, New Brunswick, NJ; Faletti, Nelson, and Marquez: The Scotts Company, Marysville, Ohio |
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| Title: | Response of glyphosate-resistant and -susceptible bentgrass to postemergence herbicides |
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| Meeting Info.: | Loews Hotel, Philadelphia, PA: January 7, 8, 9, and 10, 2002 |
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| Source: | Proceedings of the 56th Annual Meeting of the NortheasternWeed Science Society. Vol. 56, 2002, p. 110. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Glyphosate; Herbicide Resistance; Susceptibility; Postemergence herbicides; Agrostis stolonifera; Hybrids; Agrostis tenuis; Agrostis castellana
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| Abstract/Contents: | "The development of glyphosate resistant creeping bentgrass (Agrostis palustris hud.) has led to the need to identify alternative postemergence herbicides for control of these and related Agrostis species. Field studies were conducted in 2001 in North Brunswick, NJ and Merion County, Oregon to evaluate the response of glyphosate resistant creeping bentgrass hybrids ('RR 365', 'RR 368', and 'RR 801'), glyphosate susceptible creeping bentgrass hybrids ('RS 365', 'RR 368'), colonial bentgrass (Agrostis capillaris 'SR 7100'), red top bentgrass (Agrostis gigantea With. 'Streaker') and dryland bentgrass (Agrostis castellana Boiss. and Reut. 'Trust'). Each plot contained four bentgrass plugs of each line planted at a spacing of two feet on May 9 in New Jersey and May 21 in Oregon. Glyphosate at 1.5 lhs ai/A, glufosinate at 1.5 lbs ai/A, fluazifop at 0.25 and 0.375 lbs ai/A, clethodim at 0.25 lbs ai/A, sethoxydim at 0.47 lbs ai/A, and a combination of fluazifop and glyphosate were applied 6 weeks after planting. Fluazifop, clethodim and sethoxydim treatements included crop oil concentrate at 1.0% v/v. Plots were visually evaluated at 1,2,4, and 8 weeks after treatment (WAT) and plant diameters were taken prior to herbicide application and at 4 and 8 WAT. Glyphosate provided almost complete control of all susceptible bentgrass lines by 4 WAT and this level of control was maintained at 8 WAT. There was no evidence of injury or growth reduction on the glyphosate resistant lines. Glufosinate provided 95% or greater control of all bentgrass lines at 2 WAT. However, at 8 WAT regrowth was evident in Orgeon. Fluazifop, clethodim, and sethoxydim provided slower control of bentgrass lines with control ranging from 50 to 90% at 4 WAT depending on species, herbicide, and research location. By 8 WAT fluzifop at 0.4 kg/h applied alone or in combination with glyphosate showed the highest levels of control (> 90%) across all bentgrass lines. This study is currently being repeated at both research locations with planting dates in August 2001." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hart, S. E., D. w. Lycan, M. Faletti, E. K. Nelson, and G. Marquez. 2002. Response of glyphosate-resistant and -susceptible bentgrass to postemergence herbicides. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 56:p. 110. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2002_vol56.pdf#page=110
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 v. 53 |
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