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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2007.pdf#page=31
Last checked: 06/28/2013
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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): | Goddard, M. J.;
Askew, S. D.;
Willis, J. B.;
Grove, M. B. |
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| Author Affiliation: | Goddard, Askew and Willis: Virginia Tech, Blacksburg; Grove: ISK BioSciences, Houston, TX |
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| Title: | Flazasulfuron: A potential solution for selective perennial ryegrass control in creeping bentgrass |
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| Section: | Research posters
Other records with the "Research posters" Section
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| Meeting Info.: | Baltimore, Maryland: January 2-5, 2007 |
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| Source: | Proceedings of the Sixty-First Annual Meeting of the Northeastern Weed Science Society. Vol. 61, 2007, p. 13. |
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| Publishing Information: | Baltimore, Maryland: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Flazasulfuron; Herbicide efficacy; Herbicide evaluation; Herbicide injury; Lolium perenne; Selective herbicides; Weed control
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| Abstract/Contents: | "Flazasulfuron is a product not yet registered in the US under evaluation for control of broadleaf and some grassy weeds in bermudagrass (Cynodon dactylon) and zoysiagrass (Zoysia japonica). Previous studies have shown flazasulfuron controls perennial ryegrass (Lolium perenne) and fescues (Festuca spp.) quicker and more effectively than other sulfonylurea herbicides currently on the market. A study conducted in 2004 at Virginia Tech to determine the effectiveness of flazasulfuron for controlling creeping bentgrass (Agrostis stolonifera) in Kentucky bluegrass (Poa pratensis) resulted in greater injury of Kentucky bluegrass than of creeping bentgrass. Since flazasulfuron effectively controls perennial ryegrass, even a relatively low use rates, it could become the first herbicide for selective perennial ryegrass control in creeping bentgrass. The study was conducted at three locations on L93 creeping bentgrass at Virginia Techs Glade Road Research Facility and the Turfgrass Research Center in Blacksburg, VA. Herbicides included foliar applications of flazasulfuron (Flazasulfuron 25DF, ISK Biosciences) at 1 or 2 g ai/ha applied 2 or 3 times, 4 g ai/ha applied twice, and 9 g ai/ha applied once, bispyribac-sodium (VelocityTM, Valent Professional Products) at 74 g ai/ha applied twice, and sulfosulfuron (CertaintyTM, Monsanto Company) at 13 g ai/ha applied twice. Ratings included perennial ryegrass control and creeping bentgrass injury. Flazasulfuron caused slight but acceptable injury (< 21%) to the creeping bentgrass, and resulted in 100% perennial ryegrass control at or before the second application, regardless of rate. Bispyribac sodium resulted in a 49 and 74% control after two applications with less than 14% injury. Sulfosulfuron controlled 60 and 80% perennial ryegrass after three applications, but caused significantly greater injury than flazasulfuron or bispyribac sodium treatments. Unacceptable injury (>30%) to creeping bentgrass resulted after the first application of sulfosulfuron in one of the three trials. Partial perennial ryegrass control by bispyribac sodium and sulfosulfuron was unexpected and may be attributed to creeping bentgrass competition following treatment. Flazasulfuron proved to be a safe and effective control method for perennial ryegrass in creeping bentgrass. Effects of flazasulfuron on creeping bentgrass were equivalent to that of bispyribac sodium and sulfosulfuron. Further research to determine the best rates to reduce bentgrass injury and retain effectiveness is warranted." |
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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):
Goddard, M. J., S. D. Askew, J. B. Willis, and M. B. Grove. 2007. Flazasulfuron: A potential solution for selective perennial ryegrass control in creeping bentgrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 61:p. 13. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2007.pdf#page=31
Last checked: 06/28/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 |
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