Full TGIF Record # 224866
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Web URL(s):http://www.ncwss.org/proceed/NCWSS-2012-Proceedings.pdf#page=90
    Last checked: 07/16/2013
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    Notes: Item is within a single large file
Publication Type:
i
Report
Author(s):Brosnan, James; Breeden, Gregory K.; Calvache, Sara; Sorochan, John C.
Author Affiliation:University of Tennessee, Knoxville, TN
Title:Soil type and rooting depth effects on creeping bentgrass tolerance to amicarbazone and methiozolin
Section:Foresty/industrial/turf/aqautics/forage/range
Other records with the "Foresty/industrial/turf/aqautics/forage/range" Section
Meeting Info.:St. Louis, MO: December 10-13, 2012
Source:67th Annual Meeting of the North Central Weed Science Society. Vol. 67, 2012, p. 90.
# of Pages:1
Publishing Information:Champaign, Illinois: North Central Weed Science Society
Related Web URL:http://wssaabstracts.com/public/17/abstract-237.html
    Last checked: 07/18/2013
    Notes: Proceedings of the Sixty-Seventh Annual Meeting of the Northeastern Weed Science Society partial reprint
http://wssaabstracts.com/public/17/proceedings.html
    Last checked: 07/18/2013
    Notes: Document is within a single large file; Proceedings of the Sixty-Seventh Annual Meeting of the Northeastern Weed Science Society partial reprint
Keywords:TIC Keywords: Agrostis stolonifera; Amicarbazone; Efficacy; Herbicide evaluation; Methiozolin; Poa annua control; Sand-based root zones
Cultivar Names:Penncross
Abstract/Contents:"Amicarbazone and methiozolin are herbicides with efficacy for annual bluegrass (Poa annua L.) control in creeping bentgrass (Agrostis stolonifera L.). Greenhouse research was conducted at the University of Tennessee to determine the effects of rooting depth and soil type on creeping bentgrass injury with amicarbazone and methiozolin. Additional field studies in Knoxville, TN and Lubbock, TX evaluated annual bluegrass control efficacy with methiozolin on golf course putting greens varying in soil texture. In the greenhouse, 'Penncross' creeping bentgrass was established in sand- or soil-based rootzones using mini-rhizotrons. Plants were treated with amicarbazone (49, 98, 196 g ha-1) or methiozolin (500, 1000, 2000 g ha-1) once root growth reached depths of 5, 10, and 15 cm. Amicarbazone was more injurious than methiozolin in both rootzones. Creeping bentgrass injury with amicarbazone measured 38% in the sand-based rootzone compared to 62% in soil. This injury was accompanied by 54 to 69% reductions in root length density in the sand-based rootzone and 42 to 81% reductions in soil. Methiozolin resulted in <= 12% creeping bentgrass injury, regardless of rootzone type or application rate, and reduced root length density 0 to 25%. Amicarbazone applications to plants rooted to 15 cm were less injurious than those rooted to 5 and 10 cm depths. Responses indicate that methiozolin is less injurious to creeping bentgrass than amicarbazone and that rooting depth and soil type affect creeping bentgrass injury with amicarbazone. Field experiments evaluated annual bluegrass control efficacy with methiozolin using two application rates (500 and 1000 g ha-1) and six application regimes [October, November, December, October followed by (fb) November, November fb December, and October fb November fb December] on sand- and soil-based putting greens. Annual bluegrass control with methiozolin at 1000 g ha-1 on sand-based greens ranged from 70 to 72% compared to 87 to 89% on soil-based greens. Treatment at 500 g ha-1 controlled annual bluegrass 57 to 64% on sand-based greens compared to 72 to 80% on soil-based greens. Most sequential methiozolin application regimes controlled annual bluegrass greater than single applications. On sand-based greens, sequential application programs controlled annual bluegrass 70 to 79% compared to 85 to 92% on soil-based greens. Responses indicate that soil type and rooting depth affect the activity of amicarbazone and methiozolin applications for weed control on creeping bentgrass putting greens."
Language:English
References:0
Note:Reprint appears in Proceedings of the Southern Weed Science Society: 66th Annual Meeting, Vol. 66 2013, p. 236
Partial reprint appears in Proceedings of the Sixty-Seventh Annual Meeting of the Northeastern Weed Science Society, Vol. 67 2013, p. 93
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brosnan, J., G. K. Breeden, S. Calvache, and J. C. Sorochan. 2012. Soil type and rooting depth effects on creeping bentgrass tolerance to amicarbazone and methiozolin. Proc. North Cent. Weed Sci. Soc. 67:p. 90.
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Web URL(s):
http://www.ncwss.org/proceed/NCWSS-2012-Proceedings.pdf#page=90
    Last checked: 07/16/2013
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: SB 610 .N6
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