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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=205
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Gannon, T. W.;
Yelverton, F. H. |
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| Author Affiliation: | Department of Crop Science, North Carolina State University, Raleigh, NC |
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| Title: | Virginia buttonweed control in bermudagrass with carfentrazone and sulfonylurea herbicides |
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| Section: | Weed management in turf crops
Other records with the "Weed management in turf crops" Section
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| Meeting Info.: | Memphis, Tennessee: January 26-28, 2004 |
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| Source: | Proceedings: Southern Weed Science Society: 57th Annual Meeting. Vol. 57, 2004, p. 107. |
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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: Carfentrazone; Cynodon dactylon; Diodia virginiana; Herbicide efficacy; Herbicide evaluation; Sulfonylurea herbicides; Weed control
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| Abstract/Contents: | "Virginia buttonweed (Diodia virginiana) is is a mat-forming perennial broadleaf weed which favors moist or wet sites in turfgrass environments and typically requires repeat applications for acceptable control. In the 2000 SWSS Weed Survey, Virginia buttonweed was ranked as one of the top five most troublesome weeds in turfgrass environments in ten of thirteen participating states. The objectives of this research were to evaluate select newly registered sulfonylurea herbicides and carfentrazone for Virginia buttonweed control in bermudagrass turf. Two trials were initiated during the summer of 2003. Each study was conducted in a common bermudagrass rough maintained at two inches. Trial one was located at Reedy Creek Golf Course in Raleigh, NC and was initiated on June 10 while trial two was initiated on July 22 and was located at Echo Farms Golf Course in Wilmington, NC. Sulfonylurea herbicides evaluated in trial one included: a single application or two applications of flazasulfuron applied at 1.5, 2.3, or 3 oz/a, Monument (trifloxysulfuron) at 0.56, Revolver (foramsulfuron) at 26 fl oz, or TranXit GTA (rimsulfuron) at 1 oz. Standard treatments included in trial one were: Confront (triclopyr + clopyralid) at 1 pt/a, Millenium Ultra (2,4-D + clopyralid + dicamba) at 2.5 pt, Speed Zone (carfentrazone + 2,4-D + MCPP + dicamba) at 4 pt, or Trimec Classic (2,4-D + MCPP + dicamba) at 3.5 pt. In trial two, Trimec Classic at 3.5 pt/a, Horsepower (MCPA + triclopyr + dicamba) at 2 pt, Chaser 2 amine (2,4-D + triclopyr) at 2.5 pt, or Millenium Ultra at 2 pt were evaluated alone or tank-mixed with 1.3 oz/a QuickSilver (carfentrazone). Standard treatments included in trial two included: QuickSilver at 1.3 oz/a, Confront at 1 pt, or Monument at 0.56 oz. Trial one and two utilized 30 or 50 ft2 plots, respectively, while each contained four replicates and were broadcast treated at 33 gallons per acre. Each trial was evaluated visually on a 0 - 100% scale where 0 = no injury and 100 = complete control. Data were subject to ANOVA and means were separated according to Fishers Protected LSD (P=0.05). In trial one, no sulfonylurea herbicide provided acceptable Virginia buttonweed control at 12 WAIT. However, Confront or Speed Zone provided good control at 4 WAT and remained at 78 & 73%, respectively, through 12 WAT. Further, Millenium Ultra provided excellent control (96%) through 12 WAT. In trial two, at 7 DAT, Virginia buttonweed injury was increased when QuickSilver was tank-mixed with Trimec Classic, Horsepower, Chaser 2, or Millenium Ultra, compared to the products applied alone. However, at 65 DAT, QuickSilver only enhanced Virginia buttonweed control when tank-mixed with Horsepower. Millenium Ultra provided similar control (70%) regardless of whether QuickSilver was tank-mixed or applied alone. QuickSilver applied alone provided injury through 14 DAT but at 65 DAT, provided no control. In each of the trials, bermudagrass injury was not objectionable from any treatments." |
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| Language: | English |
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| References: | 0 |
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| Note: | "The changing world of weed science"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gannon, T. W., and F. H. Yelverton. 2004. Virginia buttonweed control in bermudagrass with carfentrazone and sulfonylurea herbicides. South. Weed Sci. Soc. Proc. 57:p. 107. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=205
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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