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| Web URL(s): | http://www.bioone.org/bioone/?request=get-document&issn=0890-037X&volume=018&issue=02&page=0419
Last checked: 11/2005
Access conditions: Item is within a limited access website |
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| Publication Type:
| Refereed |
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| Author(s): | Teuton, Travis C.;
Unruh, J. Bryan;
Brecke, Barry J.;
MacDonald, Greg E.;
Miller, Grady L.;
Ducar, Joyce Tredaway |
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| Author Affiliation: | Teuton: Former Graduate Research Assistant, Department of Agronomy, University of Florida, Gainesville; Unruh: Professor; Brecke: Associate Professor, Departments of Agronomy and Environmental Horticulture, University of Florida West Florida Research and Education Center, Milton, Florida; MacDonald: Assistant Professor; Miller: Associate Professor, Departments of Agronomy and Environmental Horticulture, University of Florida, Gainesville; Ducar: Assistant Professor, Department of Animal and Plant Sciences, Berry College, Mt. Berry, Georgia |
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| Title: | Tropical signalgrass (Urochloa subquadripara) control with preemergence- and postemergence-applied herbicides |
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| Source: | Weed Technology. Vol. 18, No. 2, April-June 2004, p. 419-425. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America. |
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| # of Pages: | 7 |
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| Keywords: | TIC Keywords: Urochloa subquadripara; Weed control; Stenotaphrum secundatum; Sod production; Herbicide evaluation; Preemergence herbicides; Postemergence herbicides; Asulam; Benfluralin; 2,4-D; Imazapic; Imazaquin; Oryzalin; Digitaria serotina; Panicum repens; Digitaria longiflora
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| Abstract/Contents: | "Tropical signalgrass is one of the most serious weed problems in the St. Augustinegrass sod production in Florida, and its presence increases production costs and lowers turfgrass quality. The objectives of our research were to: (1) evaluate herbicides preemergence and postemergence for control of tropical signalgrass and (2) compare control of tropical signalgrass and other problem weeds (torpedograss, blanket crabgrass, and India crabgrass) with postemergence herbicides. In preemrgence herbicide field trials, only benefin + oryzalin, imazapic, imazapic +2,4-D, and oryzalin provided ≥75% tropical signalgrass control 8 wk after application (WAA). By 11 WAA, only benefin + oryzalin and imazapic + 2,4-D provided ^D>75% tropical signalgrass control. In greenhouse experiments, eight herbicide treatments were applied postemergence to tropical signalgrass seedlings at the two-, four-, six-, and eight-leaf stages. Asulam and CGA 362622 provided ≥89% tropical signalgrass control at all application timings. Imazaquin controlled tropical signalgrass ≥98% when applied before the eight-leaf stage. However, in field trials with amture tropical signalgrass (≥20 cm stolons), none of the 20 herbicide treatments applied postemergence provided acceptable control." |
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| Language: | English |
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| References: | 18 |
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| See Also: | Other items relating to: 2, 4 - D in Turf |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Teuton, T. C., J. B. Unruh, B. J. Brecke, G. E. MacDonald, G. L. Miller, and J. T. Ducar. 2004. Tropical signalgrass (Urochloa subquadripara) control with preemergence- and postemergence-applied herbicides. Weed Technol. 18(2):p. 419-425. |
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| Web URL(s):
http://www.bioone.org/bioone/?request=get-document&issn=0890-037X&volume=018&issue=02&page=0419
Last checked: 11/2005
Access conditions: Item is within a limited access website |
| 
MSU catalog number: SB 610 .W44 |
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