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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=168
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Tucker, B. J.;
McCarty, L. B.;
Estes, A. E. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC |
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| Title: | Postemergence control of Virginia Buttonweed (Diodia virginiana) in bermudagrass (Cynodon dactylon) |
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| Section: | Weed management in turf, pasture, and rangeland
Other records with the "Weed management in turf, pasture, and rangeland" Section
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| Meeting Info.: | Houston, Texas: January 27-29, 2003 |
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| Source: | Proceedings: Southern Weed Science Society: 56th Annual Meeting. Vol. 56, 2003, p. 82. |
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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: Cynodon dactylon; Diodia virginiana; Herbicide efficacy; Herbicide evaluation; Postemergence weed control
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| Abstract/Contents: | "Virginia Buttonweed is a perennial weed with an aggressive prostrate growth habit, commonly found throughout the southern United States. Virginia Buttonweed can tolerate low mowing heights, and reproduces via seed, roots, and stem parts. Herbicidal control of this weed has been very inconsistent. The objective of this research is to evaluate the short-term postemergence control of Virginia Buttonweed using various herbicides, combinations of herbicides, and sequential applications. Two studies were performed during the summer of 2002. Each study was performed on a common bermudagrass rough on a golf course in Pendleton, SC. The initial application of study one was made on June 19, 2002, and the sequential application was made on August 19, 2002. In study two, the initial application was made on July 19, 2002, and the sequential application was made September 19, 2002. Treatments applied to study one included: Speed Zone 2.2 L (carfentrazone-ethyl + 2,4 D + MCPP + dicamba) at 0.83 lbs ai/A and 1.38 lbs ai/A, Speed Zone-St. Augustine formula 0.81 L (carfentrazone-ethyl + 2,4 D + MCPP + dicamba) at 0.41 lbs ai/A and 0.61 lbs ai/A, Power Zone 2.91 L (Carfentrazone-ethyl + MCPA + MCPP + dicamba) at 1.27 lbs ai/A, Trimec Classic 3.32 L (2,4 D + MCPP + dicamba) at 1.66 lbs ai/A, Trimec Southern 4.58 L (2,4 D + MCPP + dicamba) at 1.15 lbs ai/A, Trimec Bentgrass Formula 2.1 L (2,4 D + MCPP + dicamba) at 1.05 lbs ai/A, and Trimec Plus 2.64 L (2,4 D + MCPP + dicamba + MSMA) at 2.64 lbs ai/A. Treatments made to study two included: Corsair 75 DF (chlorsulfuron) at 0.14 lbs ai/A + 2,4 D 3.74 L at 0.5lbs ai/A, Millennium Ultra 3.75 L (2,4 D + clopyralid + dicamba) at 1.17 lbs ai/A, and Confront 3 L (triclopyr + clopyralid) at 1.13 lbs ai/A. Virginia Buttonweed control was rated weekly. Control was rated visually on a 0-100% scale with 0% = worst and 100% = best. Control <75% was considered unacceptable. Three replicates on 1.5m x 1.0m plots were used. Data was analyzed using ANOVA and LSD, α = 0.05. In the first study, at 30 days after initial treatment (DAIT) Speed Zone at both rates provided >75% control. At 70 DAIT and 10 days after sequential treatment (DAST) Speed Zone at both rates, Speed Zone St. Augustine formula at both rates, and Power Zone all provided >90% control. Differences between the two rates for Speed Zone, and the two rates for Speed Zone St. Augustine formula were not significant. At 30 DAIT Trimec Classic and Trimec Plus provided >80% control. At 70 DAIT and 10 DAST Trimec Classic, Trimec Southern, and Trimec Plus provided >90% control. Trimec Bentgrass formula provided <75% control at each rating. In the second study, at 30 DAIT Corsair + 2,4 D, Millennium Ultra, and Confront all provided >90% control. In conclusion, Virginia Buttonweed control > 90% was achieved by several of the herbicide treatments in both studies. However, it is necessary to monitor the long-term effectiveness of these treatments (e.g. >1 year), and continue to evaluate Virginia Buttonweed control by adjusting herbicide combinations, timings, and rates." |
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| Language: | English |
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| References: | 0 |
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| Note: | "Invasive weeds: Real or imagined threat?"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Tucker, B. J., L. B. McCarty, and A. E. Estes. 2003. Postemergence control of Virginia Buttonweed (Diodia virginiana) in bermudagrass (Cynodon dactylon). South. Weed Sci. Soc. Proc. 56:p. 82. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=168
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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