Full TGIF Record # 139356
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2008.pdf#page=55
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Curtis, Daniel; Brewster, Bill; Hinds-Cook, Barbara; Mallory-Smith, Carol; Hulting, Andy
Author Affiliation:Oregon State University
Title:Mannagrass control in annual ryegrass grown for seed
Section:Project 3: Agronomic section
Other records with the "Project 3: Agronomic section" Section
Meeting Info.:Anaheim/Garden Grove, California: March 11-13, 2008
Source:Proceedings of the Western Society of Weed Science. Vol. 61, 2008, p. 46.
# of Pages:1
Publishing Information:Newark, CA: Western Society of Weed Science
Keywords:TIC Keywords: Glyceria; Weed control; Seed production; Mesotrione; Herbicides; Lolium multiflorum; Herbicide trials
Abstract/Contents:"Mannagrass (Glyceria spp.) infests wet areas of many grass seed production fields in the Willamette Valley of Western Oregon. Few mannagrass control options are available to grass seed producers and the repeated use of ethofumesate has resulted in the development of resistance in many mannagrass populations. In addition to being competitive with the crop, the presence of mannagrass seed as a contaminant in Italian ryegrass (annual ryegrass) seed lots has interfered with marketing opportunities. In a screening study conducted during 2006-2007 at Hyslop Research Farm near Corvallis, OR, mesotrione at 0.094 lb ai/A, pyrasulfotole-bromoxynil at 0.23 lb ai/A, and topramezone at 0.0165 lb ai/A controlled mannagrass 98 to 100% with no Italian ryegrass injury. In two subsequent studies conducted in Italian ryegrass production fields in Linn County, OR, during the 2006-2007 season, pyrasulfotole-bromoxynil controlled mannagrass 79 and 82%. A study initiated in October 2007, included mesotrione and pyrasulfotole-bromoxynil applied at the two leaf, one tiller, three tiller and one node growth stage of the mannagrass. Evaluations of the herbicide treatments applied at the two youngest growth stages were conducted in January 2008. Mesotrione and pyrasulfotole-bromoxynil controlled 100% of the mannagrass when applied at the two leaf stage. At the one tiller application timing, Mesotrione controlled 98% of the mannagrass, pyrasulfotole-bromoxynil controlled 75% of the mannagrass."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Curtis, D., B. Brewster, B. Hinds-Cook, C. Mallory-Smith, and A. Hulting. 2008. Mannagrass control in annual ryegrass grown for seed. Proc. West. Soc. Weed Sci. 61:p. 46.
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    Last checked: 12/10/2013
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