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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2004_vol58.pdf#page=78
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Barker, W. L.;
Askew, S. D.;
Beam, J. B.;
Keese, R. J. |
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| Author Affiliation: | Barker, Askew, Beam: Virginia Tech, Blacksburg, Virginia; Keese: Syngenta Crop Protection, Carmel, Indiana |
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| Title: | Does bermudagrass post-dormancy green-up influence efficacy of trifloxysulfuron during spring transition? |
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| Section: | Research poster section
Other records with the "Research poster section" Section
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| Meeting Info.: | Marriott Cambridge Center, Cambridge, Massachusetts: January 5-8, 2004 |
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| Source: | Proceedings: NortheasternWeed Science Society. Vol. 58, 2004, p. 78. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cynodon dactylon; Dormancy; Herbicide efficacy; Herbicide evaluation; Spring green-up; Spring transition; Trifloxysulfuron
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| Abstract/Contents: | "Many golf courses have bermudagrass (Cynodon dactylon (L.) Pers.) fairways that are overseeded with perennial ryegrass (Lolium perenne L.) during bermudagrass dormancy in Virginia. Unfortunately, perennial ryegrass does not always transition naturally, thus herbicides are used for its control. Recently several herbicides have been registered for perennial ryegrass control in bermudagrass turf. These recent additions have brought about interest in how these new herbicides can be best utilized. Although these herbicides effectively control cool-season grass species, control is one only one factor to consider when applying them. Another factor is bermudagrass greenup and being able to keep a constant green playing surface during the transition. Therefore application timing of these herbicides must ensure a smooth transition from perennial ryegrass to bermudagrass swithout destroying aesthetics, affecting ball play, or impairing bermudagrass health. A study was conducted at Independence Country Club in Richmond, VA to determine the best time to apply trifloxysulfuron sodium and rimsulfuron with relation to bermudagrass greenup. The trial was conducted as a randomized complete block with a three by four factorial treatment design and four replications. Herbicides included trifloxysulfuron sodium at 5, 10, and 15 g ai/ha and rimsulfuron at 18 g ai/ha and were applied at 60, 80 and 100% bermudagrass greenup. Perennial ryegrass control, bermudagrass injury, perennial ryegrass coverage and bermudagrass coverage were evaluated at 1, 3 and 6 weeks after each herbicide application timing (WAT). All chemicals controlled perennial ryegrass more effectively when applied at 80 or 100% greenup compared to 60% greenup at 1 and 3 WAT. At 6 WAT, there were no differences in perennial ryegrass control between herbicide application timings. Bermudagrass cover and color were also improved when herbicides were applied at either 80 or 100% greenup compared to 60% greenup. Results indicate that waiting until 80% bermudagrass greenup to apply transition herbicides could improve perennial ryegrass control and improve turfgrass aesthetics during bermudagrass postdormancy transition." |
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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):
Barker, W. L., S. D. Askew, J. B. Beam, and R. J. Keese. 2004. Does bermudagrass post-dormancy green-up influence efficacy of trifloxysulfuron during spring transition?. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 58:p. 78. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2004_vol58.pdf#page=78
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 57 |
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