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| Web URL(s): | http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2011.pdf#page=88
Last checked: 12/10/2013
Requires: PDF Reader
Notes: Item is within a limited access website |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hulting, Andrew G.;
Curtis, Daniel W.;
Hinds-Cook, Barbara J.;
Mallory-Smith, Carol |
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| Author Affiliation: | Oregon State University, Corvallis, OR |
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| Title: | Annual bluegrass (Poa annua) management in established grasses grown for seed with indaziflam, pyroxasulfone and methiozolin |
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| Meeting Info.: | Albuquerque, NM: March 10-12, 2009 |
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| Source: | Proceedings of the Western Society of Weed Science. Vol. 64, 2011, p. 88. |
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| Publishing Information: | Newark, CA: Western Society of Weed Science |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Application rates; Festuca arundinacea; Field tests; Herbicide evaluation; Indaziflam; Lolium perenne; Methiozolin; Poa annua control
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| Abstract/Contents: | "Annual bluegrass (Poa annua) invades established grasses grown for seed in OR causing significant production and economic challenges for grass seed growers. Field experiments were conducted from 2007-2010 to determine the potential for using fall- applied applications of indaziflam, pyroxasulfone and methiozolin to control annual bluegrass in established perennial ryegrass and tall fescue grown for seed. A range of application rates of these three products were compared to current industry standards including applications of flufenacet+metribuzin. Annual bluegrass control, crop injury and crop yield were evaluated each year. Indaziflam applications at rates ranging from 12-50 g ai/ha resulted in excellent annual bluegrass control (greater than 90%), but injured the perennial ryegrass and tall fescue. However, the tall fescue was more tolerant to indaziflam than the perennial ryegrass. Applications rates of 12-25 g ai/ha of indazaiflam once during the life of the grass seed stand may be appropriate to manage annual bluegrass. Indaziflam applications over multiple years may reduce the life of the stand, particularly perennial ryegrass stands. Pyroxasulfone applications also resulted in excellent annual bluegrass control (greater than 90 %) and were less injurious to both tall fescue and perennial ryegrass than indaziflam applications. Application rates ranging from 50-100 g ai/ha resulted in little crop injury and no yield loss. Applications of methiozolin up to 1000 g ai/ha resulted in little crop injury and good to excellent control of annual bluegrass. However, control of annual bluegrass with methiozolin was less consistent than with indaziflam and pyroxasulfone. These studies suggest that the active ingredients indaziflam, pyroxasulfone and methiozolin appear to provide adequate annual bluegrass control as well as crop safety when applied to established perennial ryegrass and tall fescue. Additional trials are ongoing to build needed efficacy and crop safety data sets with these compounds should industry choose to pursue uses of these materials in grasses grown for seed." |
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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):
Hulting, A. G., D. W. Curtis, B. J. Hinds-Cook, and C. Mallory-Smith. 2011. Annual bluegrass (Poa annua) management in established grasses grown for seed with indaziflam, pyroxasulfone and methiozolin. Proc. West. Soc. Weed Sci. 64:p. 88. |
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| Web URL(s):
http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2011.pdf#page=88
Last checked: 12/10/2013
Requires: PDF Reader
Notes: Item is within a limited access website |
| 
MSU catalog number: b2224583a |
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