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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou1221.pdf
Last checked: 10/18/2011
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| Publication Type:
| Refereed |
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| Author(s): | Stier, John;
Horgan, Brian P. |
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| Author Affiliation: | Stier: Department of Horticulture, University of Wisconsin, Madison, Wisconsin; Horgan: Department of Horticultural Science, University of Minnesota, Saint Paul, Minnesota |
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| Title: | Sensitivity of Kentucky bluegrass (Poa Pratensis L.) cultivars to bispyribac-sodium herbicide |
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| Section: | Weed science
Other records with the "Weed science" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 2, 2009, p. 1221-1228. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Bispyribac-sodium; Golf fairways; Mowing height; Phytotoxicity; Poa annua; Poa pratensis; Quality evaluation; Weed control
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| Abstract/Contents: | "Annual bluegrass (Poa annua L.) is a pernicious weed in Kentucky bluegrass (KBG; Poa pratensis L.) when maintained as golf course fairway turf or grown for sod production. Bispyribac-sodium (bispyribac; sodium 2,6-bis[(4,6-dimethoxypyrimidin-2-yl)oxy]benzoate) is a relatively new herbicide labeled for selective removal of annual bluegrass from creeping bentgrass (Agrostis stolonifera L.) and perennial ryegrass (Lolium perenne L.) turf. Preliminary research indicated some KBG cultivars suffer phytotoxicity from bispyribac but information is needed on a wide range of cultivars and different mowing heights. Our objective was to determine the relative range of phytotoxicity of KBG cultivars at two mowing heights, typical golf course fairway (1.2 cm) and sod-production (5 cm) mowing heights. Two applications of bispyribac [74 g active ingredient (ai) ha-1] were applied at 2 wk intervals to KBG turf mowed at golf course fairway (41 cultivars) and sod production (20 cultivars) heights. The trials were repeated over locations and/or years. Phytotoxicity varied between years and locations, though several cultivars were consistently and severely damaged in all trials. The high mowing height used for sod production resulted in minimal phytotoxicity for most cultivars in one location-year, but not the other, compared to fairway height. A few cultivars appeared relatively tolerant to bispyribac during the entire 42 days after initial treatment (DAIT). At fairway heights, only nine of 41 cultivars maintained acceptable turf quality, though 18 cultivars recovered by 42 DAIT; 'Rita' and 'Allure' appeared relatively insensitive to bispyribac. 'Princeton-105' was consistently and severely injured regardless of mowing height, location or year." |
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| Language: | English |
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| References: | 16 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stier, J., and B. P. Horgan. 2009. Sensitivity of Kentucky bluegrass (Poa Pratensis L.) cultivars to bispyribac-sodium herbicide. Int. Turfgrass Soc. Res. J. 11(Part 2):p. 1221-1228. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou1221.pdf
Last checked: 10/18/2011
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MSU catalog number: b2548899 |
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