Full TGIF Record # 11858
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Web URL(s):http://www.newss.org/proceedings/proceedings_1987_vol41.pdf#page=235
    Last checked: 07/25/2013
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Prinster, Mark G.; Watschke, Thomas L.
Author Affiliation:Agronomy Dept., Pennsylvania State University, University Park, PA.
Title:Chemical Vegetation Management on a Pennsylvania Roadside
Meeting Info.:Held: January 6-8, 1987, Williamsburg, VA.
Source:Proceedings of the 1987 Annual Meeting of the Northeastern Weed Science Society. Vol. 41, 1987, p. 235.
Publishing Information:Ithaca, N. Y. : Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Chemical control; Roadside turf; Growth regulators; Mefluidide; Flurprimidol; Amidochlor; EPTC; Metsulfuron; Glyphosate; Sulfometuron; Chlorsulfuron; Festuca arundinacea; Seedhead inhibition; Growth; Tillers (vegetative)
Abstract/Contents:"Several growth retarding and herbicidal compounds were applied to a roadside to determine their effects on seedhead development, vertical foliar growth and tiller production of tall fescue (Festuca arundinacea Schreb.). Mefluidide 0.42 kg/ha, flurprimidol 1.68 kg/ha, mefluidide 0.28 kg/ha + flurprimidol 0.56 kg/ha, amidochlor 2.8 kg/ha, amidochlor 1.1 kg/ha + flurprimidol 0.56 kg/ha, EPTC 3.4 and 6.7 kg/ha, XE-1019 0.06 and 0.11 kg/ha, mefluidide 0.28 kg/ha + XE-1019 0.06 kg/ha, mefluidide 0.28 kg/ha + metsulfuron methyl 17.5 g product ha, glyphosate 0.12 kg/;ha + sulfometuron methyl 17.5 g product/ha and glyphosate 0.12 kg/ha + chlorsulfuron 17.5 g product/ha were applied April 30, 1986, to 9.0 by 2.4 meter plots utilizing a randomized complete block design. EPTC was applied with a drop-type spreader and spray treatments were applied with a boom sprayer. Grass heights were measured preriodically throughout the experiment. Seedhead suppression and foliar injury were visually rated. Tiller production was determined by counts in a randomly subsampled 20 by 20 cm quadrant. Total vegetation suppression (foliage, seedheads) was evaluated by fresh weight harvest of a 1.5 by 4.5 meter swath (10 cm height). The mefluidide + metsulfuron methyl combination provided excellent seedhead suppression although it was not significantly greater than mefluidide alone, EPTC at 6.7 kg/ha, glyphosate + sulfometuron methyl and glyphosate + chlorosulfuron. All other treatments provided poor seedhead suppression. The mefluidide + metsulfuron methyl combination and EPTC at 6.7 kg/ha caused unacceptable injury to tall fescue. Injury caused by XE-1019, flurprimidol, amidochlor + flurprimidol and glyphosate + chlorsulfuron was slight and insignificant. All other treatments caused some discoloration but the injury was assessed to be acceptable for roadside vegetation. Vegetation production was most suppressed by glyphosate + sulfometuron methyl although mefluidide + metsulfuron methyl, EPTC at 6.7 kg/ha, amidochlor and mefluidide alone caused similar results. Glyphosate + sulfometuron methyl, mefluidide + metsulfuron methyl, glyphosate + chlorsulfuron, EPTC at 6.7 kg/ha, amidochlor and mefluidide alone significantly slowed the vertical foliar growth of tall fescue (height was measured six times throughout the experiment). Mefluidide + metsulfuron methyl reduced tiller dry weights the most followed by EPTC 6.7 kg/ha, mefluidide + flurprimidol, EPTC 3.4 kg/ha, amidochlor and flurprimidol alone. Total number of tillers was highest for turf treated with glyphosate + sulfometuron methyl. No other treatment was different from the check though turf treated with mefluidide + metsulfuron methyl tended to have the fewest tillers. Weight of individual tillers harvested from turf treated with XE-1019, amidochlor + flurprimidol, flurprimidol alone, glyphosate + chlorsulfuron and EPTC at 3.4 kg/ha was not different from tillers harvested from untreated turf. Glyphosate + sulfometuron methyl, EPTC at 6.7 kg/ha, amidochlor alone, and all treatments that included mefluidide significantly reduced individual tiller weight. Glyphosate + chlorsulfuron and mefluidide showed the most potential for roadside use by effectively suppressing seedhead development and vertical foliar growth while causing minimal injury and stand loss."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Prinster, M. G., and T. L. Watschke. 1987. Chemical Vegetation Management on a Pennsylvania Roadside. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 41:p. 235.
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http://www.newss.org/proceedings/proceedings_1987_vol41.pdf#page=235
    Last checked: 07/25/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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