Full TGIF Record # 227100
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Web URL(s):http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=257
    Last checked: 08/07/2013
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Publication Type:
i
Report
Author(s):Burch, P. L.; Kline, B.; Peterson, V. F.; Langston, V. B.; Smith, M. S.
Author Affiliation:Burch: DowAgroSciences, Christianburg, VA; Kline: Dow AgroSciences, Duluth, GA; Peterson: DowAgroSciences, Mulino, OR; Langston: Dow AgroSciences LLC, The Woodlands, TX; Smith: DowAgroSciences, Indianapolis, IN
Title:Grass seedhead and growth suppression with aminopyralid + metsulfuron for roadside row
Section:Vegetation management in utilities, railroads & highways rights-of-way; industrial sites
Other records with the "Vegetation management in utilities, railroads & highways rights-of-way; industrial sites" Section
Meeting Info.:Charleston, South Carolina: January 23-25, 2012
Source:2012 Proceedings, Southern Weed Science Society. Vol. 65, 2012, p. 185.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Aminopyralid; Comparisons; Growth analysis; Herbicide efficacy; Herbicide evaluation; Metsulfuron methyl; Mowing; Plant growth regulators; Roadside turf; Seedhead inhibition
Trade Names:Opensight; Milestone
Abstract/Contents:"Roadside vegetation is managed to improve roadway visibility, aesthetics, and safety. These objectives are often achieved by a combination of mowing and herbicide applications. Mowing is more costly than the use of herbicides, especially with recent increases in fuel prices and increased exposure of roadside workers to traffic hazards. In addition to weed control, grass height management is required because tall, overgrown vegetation can limit motorist visibility of roadside hazards or signage. Herbicides have been used as plant growth regulators (PGR's) to suppress grass growth of cool- and warm-season grasses on roadside rights-of-way. Trials were established in 2011 to determine effect of Opensight® (aminopyralid + metsulfuron) compared to Milestone® (aminopyralid) + Plateau (imazapic) on grass height and injury to desirable grasses in both warm season and cool season grass systems. In the southeast United States, roadsides are dominated by warm-season grasses, bahiagrass and bermudagrass. Bahiagrass requires frequent mowing and poses the greatest challenge to roadside managers. Bahiagrass height was significantly reduced by both Opensight and Plateau when compared to the bahiagrass in non-treated grass plots. Opensight at 2.5 oz/A and Milestone + Plateau at 4 + 3 fluid oz/A caused significant height reductions for a period of 10 weeks after application. Opensight and Plateau caused greater than 80% bahiagrass injury. Observations confirmed that treatments containing Plateau have the potential to cause yellowing, thinning and stunting in bermudagrass, which provides an opportunity for weed invasion. In the northeast and north central United States, roadsides are dominated by the cool-season grass, tall fescue, which poses management challenges for roadside managers, especially in the early growing season. Tall fescue height was significantly reduced by herbicide treatments when compared to tall fescue in the non-treated plots. Tall fescue injury was generally minimal with Opensight at 2.5 oz/A and Milestone + Plateau at 5 fl oz/A + 3 fl oz/A. When simulating application overlap by doubling those rates, foliage injury with the combination of Milestone + Plateau at 10 fl oz + 6 fl oz was slightly higher (25% visual injury) than Opensight at 5 oz (15% visual injury). Some minor tall fescue stand thinning was noted with Opensight and with Milestone + Plateau at all rates applied. Opensight and Milestone + Plateau provide managers of roadside rights-of-way vegetation with means to suppress growth of selected warm-and cool-season grasses for up to 10 weeks. These herbicides are a useful alternative to mechanical treatments and reduce mowing frequency. When treating areas in and around roadside or utility rights-of-way that are or will be grazed or planted to forage, important label precautions apply regarding harvesting hay from treated sites, using manure from animals grazing on treated areas or rotating the treated area to sensitive crops. See the product label for details. State restrictions on the sale and use of Opensight apply. Consult the label before purchase or use for full details. Always read and follow label directions."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Burch, P. L., B. Kline, V. F. Peterson, V. B. Langston, and M. S. Smith. 2012. Grass seedhead and growth suppression with aminopyralid + metsulfuron for roadside row. South. Weed Sci. Soc. Proc. 65:p. 185.
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http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=257
    Last checked: 08/07/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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