Full TGIF Record # 224628
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Web URL(s):http://www.newss.org/proceedings/proceedings_2008.pdf#page=46
    Last checked: 07/15/2013
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Publication Type:
i
Report
Author(s):Goddard, M. J.; Mittlesteadt, T. L.; Askew, S. D.; Houseworth, L. D.
Author Affiliation:Goddard, Mittlesteadt and Askew: Virginia Tech, Blacksburg; Houseworth: Arysta LifeScience North America, Fernandina Beach, FL
Title:Amicarbazone and flucarbazone for weed control in turfgrass
Section:Graduate student contest
Other records with the "Graduate student contest" Section
Meeting Info.:Philadelphia, Pennsylvania: January 7-10, 2008
Source:Proceedings of the Sixty-Second Annual Meeting of the Northeastern Weed Science Society. Vol. 62, 2008, p. 28.
Publishing Information:Baltimore, Maryland: Northeastern Weed Science Society
# of Pages:1
Keywords:TIC Keywords: Amicarbazone; Flucarbazone; Herbicide efficacy; Herbicide evaluation; Herbicide injury; Weed control
Abstract/Contents:"Amicarbazone and flucarbazone (70 WG, Aryst a LifeScience) are both members of the triazolone chemical family and are being evaluated for use in the turfgrass industry. Amicarbazone inhibits photosynthes is at photosystem II and is registered in corn as an atrazine alternative. Flucarbazone inhibits branched chain amino acid production by inhibiting the enzyme acetolactate synthase (ALS), and is used in cereals for postemergence and preemergence control of grassy weeds and selected broadleaved weeds. Field trials conducted in Blacksburg, VA evaluated the use of amicarbazone and flucarbazone for control of annual grasses and broadleaved weeds, as well as turfgrass tolerance. A study to evaluate cool-season turfgrass tolerance of these herbicides in tall fescue (Festuca arundinacea), Kentucky bluegrass (Poa pratensis), fine fescue, and creeping bentgrass (Agrostis stolonifera) was initiated in 2007. Treatments included single applications of flucarbazone applied at 21 and 42 g/ha, and amicarbazone at 248, 495, and 743 g/ha, compared to currently labeled triazolone herbicides carfentrazone and sulfent razone at 1 and 2 times label suggested rates to determine turfgrass tolerance. Amicarbazone treatments were the most injurious overall with the highest rates resulting in greater than 70% injury to creeping bentgrass and Kentucky bluegrass. Flucarbazone treatments resulted in minimal injury to fine fescue, Kentucky bluegrass, and creeping bentgrass, but unacceptable injury (chlorosis and stunted growth) to tall fescue. In two tria ls that evaluated amicarbazone applied preemergence at 743 g/ha and flucarbazone applied preemergence and postemergence at 42 g/ha for smooth crabgrass (Digitaria ischaemum) control in Kentucky bluegrass, neither of these tw o products significantly reduced crabgrass presence whether applied preemergence or poste mergence. However, it was observed that both herbicides had activity on annua l and perennial broadleav ed weeds. It was also observed that amicarbazone injured Kentucky bluegrass more than 50% at both locations. In other trials, amicarbaz one and flucarbazone appli ed at 743 g/ha and 42 g/ha, respectively, were compared to Speedzone® (PBI/Gordon Corporation), an industry standard, applied at 4.7 L/ha, for postemergence broadleaf control in lawn height tall fescue and Kentucky bluegrass. White clover (Trifolium repens) was controlled by amicarbazone 87 and 100% , flucarbazone 47 and 87%, and Speedzone® 100% in tall fescue and Kentucky bluegrass, respectively. Minimal injury was noticed in all treatments when applied to tall fescue, but amicarbazone injured Kentucky bluegrass 90% or more."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Goddard, M. J., T. L. Mittlesteadt, S. D. Askew, and L. D. Houseworth. 2008. Amicarbazone and flucarbazone for weed control in turfgrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 62:p. 28.
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http://www.newss.org/proceedings/proceedings_2008.pdf#page=46
    Last checked: 07/15/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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