Full TGIF Record # 112570
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Web URL(s):http://www.newss.org/proceedings/proceedings_2006.pdf#page=98
    Last checked: 07/22/2013
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Gannon, T. W.; Yelverton, F. H.; Warren, L. S.
Author Affiliation:North Carolina State University, Raleigh, North Carolina
Title:Turfgrass tolerance and weed control with mesotrione
Section:Turfgrass and plant growth regulators
Other records with the "Turfgrass and plant growth regulators" Section
Meeting Info.:Providence, RI: January 3-6, 2006
Source:Proceedings: NortheasternWeed Science Society. Vol. 60, 2006, p. 93.
Publishing Information:Ithaca, NY: Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Mesotrione; Weed control; Herbicide resistance; Digitaria ischaemum; Crabgrass control; Postemergence weed control; Herbicide evaluation; Preemergence weed control; Eleusine indica
Abstract/Contents:"Much research has recently been completed investigating the applications of mesotrione for weed control in warm- and cool-season turfgrass environments. Research trials were initiated to investigate select annual grass control and turfgrass tolerance with mesotrione applied at various timings. Research trials were initiated in early April to investigate preemergence smooth crabgrass control with mesotrione and included July treatments to evaluate postemergence crabgrass control. At the July application, smooth crabgrass averaged two tillers. Evaluated treatments included mesotrione (4 SC) applied at 0.31 or 0.62 lb ai/A and postemergence treatments included a non-ionic surfactant. Applied preemergence, mesotrione did not provide smooth crabgrass control. However, applied postemergence, mesostrione (0.31 or 0.62 lb ai/A) provided 78 and 95% smooth crabgrass control, respectively at four weeks after treatment. Futher, at eight weeks after treatment, the same treatments provided 71 to 86% control, respectively. In a separate trial initiated at the same time, 0.33 or 0.5 lb ai/A mesotrione applied postemergence provided 73 or 90% smooth crabgrass control, respectively, at four weeks after treatment and 60 or 83% control, respectively, at eight weeks after treatment. Evaluated preemergence for goosegrass control, 0.31 or 0.62 lb ai/A mesotrione provided 25 or 50% grossegrass control, respectively, mid-August. By mid-September control remainded at 25 and 44% control, respectively. In a separate trial initiated at the same time, 0.33 or 0.5 lb ai/A mesotrione applied preemergence provided 38 to 20% goosegrass control, respectively, mid-August while control decreased by mid-September. Applied early postemergence to goosegrass averaging two leaves, one application of mesotrione (0.19 or 0.25 lb ai/A) provided 11 and 38% control, respectively, at four weeks after treatment while control decreased at eight weeks after treatment. Two applications (0.19 or 0.25 lb ai/A) provided 60 and 75% control, respectively at 4 and 8 weeks after treatment. Tolerance trials were also initiated to investigate the tolerance of tall fescue to mesotrione applied at spring or fall seeding as well as applied to established tall fescue. With mesotrione applied (0.125, 0.25,or 0.5 lb ai/A) at spring seeding and six weeks after seeding, no reductions in tall fescue cover were observed, compared to the nontreated. With mesotrione (0.125, 0.25, or 0.5 lb ai/A) applied to the established tall fescue, no phytotoxicity was observed at any evaluation time. These date indicated mesotrione will provide a measure for selective weed control in cool-season turfgrass environments."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gannon, T. W., F. H. Yelverton, and L. S. Warren. 2006. Turfgrass tolerance and weed control with mesotrione. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 60:p. 93.
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http://www.newss.org/proceedings/proceedings_2006.pdf#page=98
    Last checked: 07/22/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: SB 610 .N62 v. 60
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