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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/82/2/AJ0820020278
Last checked: 12/14/2016
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| Publication Type:
| Refereed |
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| Author(s): | Dernoeden, P. H. |
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| Author Affiliation: | University of Maryland |
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| Title: | Comparison of Three Herbicides for Selective Tall Fescue Control in Kentucky Bluegrass |
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| Source: | Agronomy Journal. Vol. 82, No. 2, March/April 1990, p. 278- 282. |
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| Publishing Information: | Washington: American Society of Agronomy |
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| Keywords: | TIC Keywords: Festuca arundinacea; Poa pratensis; Weed control; Application rates; Selective herbicides; Chlorsulfuron; Diclofop; Metsulfuron
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| Abstract/Contents: | "Tall fescue (Festuca arundinacea Schreb.) can be an objectional weed in Kentucky bluegrass (Poa pratensis L.). Field studies were conducted to determine safe and effective rates of chlorsulfuron [2-chloro-N-{[(4-methoxy- 6-methyl-1,2,5-triazin-2-yl)amino]carbonyl} -benzenesulfonamide], diclofop {(+-)-2-[4[(2,4- dichlorophenoxy)phenoxy]propanoic acid), and metsulfuron [2-[{[4-methocy-6-methyl-1,2,5-triazin-2-yl)amino]carbonyl} amino]sulfonyl)benzoic acid] for selective tall fescue control in Kentucky bluegrass. Herbicides were field tested in either 'Kenblue' Kentucky bluegrass, grown on a Sassafrass sandy loam (fine-loamy, siliceous, mesic Typic Hapludult), or an improved Kentucky bluegrass blend grown on a Chester silt loam (fine-loamy, mixed mesic Typic Hapludult). Two applications of diclofop reduced bluegrass cover and quality for extensive periods and generally provided inferior tall fescue control compared to chlorsulfuron or metsulfuron. Chlorsulfuron applied at 0.07 + 0.07 or 0.14 + 0.14 kg ha-1) did not injure Kenblue; however, both rates injured the Kentucky bluegrass blend, and turf treated twice at the high rate required 1 yr for recovery. Single applications of chlorsulfuron (0.14 or 0.28 kg ha-1) or metsulfuron (0.07 or 0.14 kg ha-1) provided over 90% tall fescue control at the Kenblue site. Single applications of 0.07 + 0.07 or 0.14 + 0.14 kg ha-1 of either chlorsulfuron or metsulfuron provided over 90% control in the bluegrass blend. When compared to untreated turf, chlorsulfuron or split applications of metsulfuron applied in the fall, resulted in more bluegrass injury the following summer when turf was subjected to drought stress." |
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| Language: | English |
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| References: | 5 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dernoeden, P. H. 1990. Comparison of Three Herbicides for Selective Tall Fescue Control in Kentucky Bluegrass. Agron. J. 82(2):p. 278- 282. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/82/2/AJ0820020278
Last checked: 12/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 22 .A45 |
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