Full TGIF Record # 167194
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Web URL(s):http://groups.hort.oregonstate.edu/content/2008-osu-and-wsu-turfgrass-field-day
    Last checked: 08/04/2010
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Publication Type:
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Report
Content Type:Abstract or Summary only
Author(s):Williams, Matthew W.; Johnston, William J.; Yenish, Joseph P.; Miltner, Eric D.; Golob, Charles T.
Title:Glasshouse evaluation of pre-plant and at planting applications of mesotrione on perennial ryegrass and chewings fescue
Section:WSU contributions
Other records with the "WSU contributions" Section
Meeting Info.:Corvallis, OR: August 19, 2008
Source:Turfgrass Field Day: Oregon State & Washington State. August 19 2008, p. 68-69.
# of Pages:2
Publishing Information:Corvallis, OR: [Washington State University and Oregon State University]
Keywords:TIC Keywords: Festuca rubra subsp. commutata; Herbicide evaluation; Herbicide safety; Lolium perenne; Mesotrione; Postemergence weed control; Preemergence weed control; Siduron
Abstract/Contents:"Weed control options during turfgrass establishment are limited. There is currently only one herbicide, siduron (N-[2-methylcyclohexyl] N-phenylurea), which is impregnated on fertilizer for use at seeding in turfgrass. Siduron effectively controls grass weeds, but has litte efficiacy on broadleaf weeds. Mesotrione (2-[4-(methylsulfonyl)-2-nitrobenzoyl]-1, 3-cyclohexanedione) has proven to selectively control a broad spectrum of broadleaf and some grass weeds in cool-season turfgrass, and may also be impregnated on fertilizer. Glasshouse evaluations were conducted at Pullman, WA in the spring (April and May) of 2007 to evaluate turfgrass safey at four rates of mesotrione (161 g ha-1, 282 g ha-1, 343 g ha-1, and 565 g ha-1) applied to 'Treazure' chewings fescue (Festuca rubra L. ssp. commutata Gaudin) and 'Gallery' perennial ryegrass (Lolium perenne L.). Each rate was applied at four timings (4-week pre-plant, 2-week pre-plant, 1-week pre-plant, and at planting). The soil was a Palouse silt loam (Pachic Ultic Haploxerolls, fine silty, mixed, mesic). No mesotrione rates or application timings were safe to apply when seeding chewings fescue, as there was a reduction in shoot dry weight, unacceptable phytotoxicity, and a reduction in seedling emergence. All mesotrione rates and application timings were safe on perennial ryegrass, as dry weight reductions were minimal, full recovery from initial phytotoxicity occured, and seedling emergence was 95% by the conclusion of the study (35 days after planting). Mesotrione was safe to apply to perennial ryegrass at, or prior to planting but was not considered to be safe on chewings fescue at the rates and timings included in this study."
Language:English
References:0
Note:Abstract only
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Williams, M. W., W. J. Johnston, J. P. Yenish, E. D. Miltner, and C. T. Golob. 2008. Glasshouse evaluation of pre-plant and at planting applications of mesotrione on perennial ryegrass and chewings fescue. Turfgrass Field Day: Oregon State & Washington State. p. 68-69.
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http://groups.hort.oregonstate.edu/content/2008-osu-and-wsu-turfgrass-field-day
    Last checked: 08/04/2010
    Requires: Adobe flash player
    Notes: Item is within a single large file
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