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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2009 Proceedings-SWSS.pdf#page=468
Last checked: 07/25/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Brecke, B. J.;
Unruh, B.;
Telenko, D. P. |
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| Author Affiliation: | West Florida Research and Ed. Cent., University of Florida, Jay, FL |
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| Title: | Flazasulfuron for weed management in warm-season turfgrass |
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| Section: | Turf and ornamentals
Other records with the "Turf and ornamentals" Section
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| Meeting Info.: | Orlando, Florida: February 9-12, 2009 |
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| Source: | 2009 Proceedings, Southern Weed Science Society. Vol. 62, 2009, p. 398. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cultivar evaluation; Cynodon dactylon; Flazasulfuron; Herbicide injury; Postemergence herbicides; Research; Weed control
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| Cultivar Names: | Sea Isle I; Sea Isle 2000; Tifway; TifEagle; Tifdwarf; Raleigh; Emerald |
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| Abstract/Contents: | "Studies were conducted at the University of Florida, West Florida Research and Education Center near Jay, FL to determine warm-season turfgrass tolerance and weed control following postemergence application of flazasulfuron. Eight turfgrass species/cultivars common in the southern U.S. were selected for study (Sea Isle 1 and Sea Isle 2000 Seashore Paspalum; Tifway, Tifeagle, Tifdwarf, bermudagrass; common centipedegrass; Raleigh St. Augustinegrass; and Emerald Zoysiagrass). Four rates of flazasulfuron (26 gm ha-1, 40 g ha-1, 53 g ha-1, 105 g ha-1) were applied to the various species/cultivars of turfgrass. Sea Isle 1 seashore paspalum showed significant injury early, but recovered quickly indicating moderate tolerance to flazasulfuron. Sea Isle 2000 seashore paspalum showed no injury at the 26 g ha-1 level, and showed little injury at other rates suggesting good tolerance. Tifway bermudagrass was not injured by any flazasulfuron rate tested. Tifeagle and Tifdwarf bermudagrass had significant damage early, but recovered well over time. Both varieties had moderate to good tolerance. Common centipedegrass showed significant injury early with little recovery over time. Raleigh St. Augustinegrass showed little injury early, but had severe damage over time and did not tolerate flazasulfuron. Emerald zoysiagrass showed little injury throughout the study and had good tolerance to this herbicide. Flazasulfuron (52 g ha-1), applied to bermudagrass 4 wk prior to overseeding perennial ryegrass provided 80% annual bluegrass control 20 wk after application with no injury to the perennial ryegrass. Other studies were conducted to evaluate flazasulfuron for control of both annual and perennial weed species in bermudagrass. At 4 wk after initial treatment (WAIT), flazasulfuron (26 g ha-1) controlled southern crabgrass equal to MSMA (85 to 90%). By 14 WAIT the rate needed to maintain 85% control increased to 35 g ha-1. Flazasulfuron applied three times at 80 g ha-1 , with treatments spaced 3 wk apart, provided better torpedograss control (80%) than a single treatment at the same rate (60%). Torpedograss control with the sequential program was comparable to that observed with the standard quinclorac 21 WAIT. Bahiagrass control was less than 50% with a single application of flazasulfuron. A single application was also ineffective for control of Virginia buttonweed. However, two sequential applications improved Virginia buttonweed control to 70% while three applications provided 90% control 11 WAIT. Flazasulfuron provided more consistent control of purple nutsedge and cocks-comb kyllinga when applied twice compared with a single treatment. The sequential treatment controlled these species similar to the standard halosulfuron. Flazasulfuron was also effective for removing ryegrass overseeding in the spring and provided 90% control 3 WAT." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brecke, B. J., B. Unruh, and D. P. Telenko. 2009. Flazasulfuron for weed management in warm-season turfgrass. South. Weed Sci. Soc. Proc. 62:p. 398. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2009 Proceedings-SWSS.pdf#page=468
Last checked: 07/25/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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