Full TGIF Record # 139425
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Web URL(s):https://archive.lib.msu.edu/tic/groot/article/2007jul17.pdf
    Last checked: 03/02/2009
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Publication Type:
Author(s):Stier, John
Author Affiliation:Department of Horticulture, University of Wisconsin-Madison
Title:Safety of Velocity™ on Kentucky bluegrass cultivars maintained at fairway height
Column Name:Gazing in the grass
Other records with the "Gazing in the grass" Column
Source:The Grass Roots. Vol. 36, No. 4, July/August 2007, p. 17, 19, 21.
Publishing Information:Madison, WI: Wisconsin Golf Course Superintendents Association.
# of Pages:3
Keywords:TIC Keywords: Bispyribac-sodium; Poa pratensis; Poa annua control; Herbicide resistance; Variety trials; Selective grass herbicides; Pesticide labeling; Herbicide trials; Herbicide injury; Application rates; Mowing height
Trade Names:Velocity
Abstract/Contents:Presents a study conducted to "evaluate the potential phytotoxicity on Kentucky bluegrass cultivars in case a label change to include Kentucky bluegrass might be appropriate." Details methods and materials used in the study, stating that "over 170 varieties of Kentucky bluegrass in the 2000 National Turfgrass Evaluation Program (NTEP) were assessed for tolerance to Velocity in Wisconsin during summer 2005. [Researchers] maintained the turf throughout the study as a fairway by mowing at one-half inch height three times weekly and returned the clippings. the soil type was a Troxel silt loam with pH 7.2...The NTEP plots, measuring 5 ft [feet] x 5 ft, were planted in autumn 2000 as a randomized block with three replications." Lists treatments evaluated in the study, stating that Velocity 17.6 SG was applied to one-half of each plot as a strip-plot treatment on 17 June 2005." Reports that "about half of the 173 varieties in the NTEP provided 50% or better Kentucky bluegrass cover by June 2005, though only 55 maintained 70% or better cover. Most injury did not start to show itself until 14 days or more after application, with the worst injury seen about 28 days after application." Concludes that "results suggest that if Kentucky bluegrass is ever added to the Velocity label it will likely be limited to specific cultivars and/or mowing heights...The use of multiple, low-rate applications might have the extra benefit of allowing Kentucky bluegrass to fill in the voids as P. annua is removed and avoid the need to overseed."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stier, J. 2007. Safety of Velocity™ on Kentucky bluegrass cultivars maintained at fairway height. Grass Roots. 36(4):p. 17, 19, 21.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=139425
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    Last checked: 03/02/2009
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MSU catalog number: SB 433 .A1 G58
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