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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=341
Last checked: 08/12/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Hoyle, J. A.;
Straw, C. M.;
Henry, G. M. |
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| Author Affiliation: | University of Georgia, Athens, GA |
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| Title: | Postemergence control of common carpetgrass in a hybrid bermudagrass putting green |
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| Section: | Weed management in turf
Other records with the "Weed management in turf" Section
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| Meeting Info.: | Houston, Texas: January 28-30, 2013 |
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| Source: | Proceedings of the Southern Weed Science Society: 66th Annual Meeting. Vol. 66, 2013, p. 254. |
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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: Application rates; Axonopus affinis; Control methods; Golf greens; Herbicide evaluation; Hybrid bermudagrasses; Postemergence weed control; Weed profile
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| Abstract/Contents: | "Common carpetgrass [Axonopus fissifolius (Raddi) Kuhlm.] is a stoloniferous, warm season perennial grass with medium- to course-textured leaves. Leaves of carpetgrass are light green, 4-15 cm in length, 4-10 mm wide, and usually contain 2 to 4 slender, dense spikes (3-10 cm long). Carpetgrass is adapted to moderately acidic, low fertility, and sandy wet soils which are commonly found in golf course roughs. However, carpetgrass infestations are not only limited to golf course roughs. Infestations have been documented on bermudagrass putting greens. Tolerance to low mowing height and limited amount of labeled herbicides has increased the prevalence of carpetgrass in bermudagrass putting greens. Field experiments were conducted at Pine Hills Golf Club in Winder, GA to examine the control of carpetgrass in a hybrid bermudagrass putting green. The soil was an Appling sandy loam (Fine, kaolinitic, thermic Typic Kanhapludult). Research was performed on a 'Tifdwarf' hybrid bermudagrass [Cynodon dactylon (L.) Pers. × C. transvaalensis Burtt-Davy] putting green maintained at a 0.3 cm height . Carpetgrass cover (40 to 75%) within each plot was determined at the time of initial herbicide application. Treatments were applied to plots (0.6 m x 0.9 m) arranged in a randomized complete block design with three replications. Treatments included a non-treated check, foramsulfuron [Revolver] (0.06 kg ai ha-1), MSMA (1.15 kg ai ha-1), trifloxysulfuron [Monument] (0.01 kg ai ha-1), nicosulfuron [Accent] (0.03 kg ai ha-1), thiencarbazone + iodosulfuron + dicamba [Celsius] (0.13 kg ai ha-1), and thiencarbazone + foramsulfuron + halosulfuron [Tribute Total] (0.08 kg ai ha-1). Initial applications were conducted on 2 July 2012 and sequential applications were made 2 and 4 weeks later (16 July 2012 and 30 July 2012, respectively) using the same rates. Treatments were applied using a CO2 pressurized backpack sprayer equipped with XR8004VS nozzle tips calibrated to deliver 375 L ha-1 at 221 kPa. Percent bermudagrass phytotoxicity and carpetgrass cover were visually evaluated 1, 3, 5, and 10 weeks after initial treatment (WAIT). Percent carpetgrass control for each treatment was calculated relative to initial carpetgrass cover. Analysis of variance was performed in SAS and means were separated according to Fisher's protected LSD at the 0.05 significance level. No bermudagrass phytotoxicity was observed throughout the length of the experiment regardless of treatment. Tribute Total exhibited moderate (68%) carpetgrass control, 1 WAIT. All other treatments 1 WAIT resulted in <= 20% carpetgrass control. Tribute Total, Celsius, and MSMA (95%, 92%, and 77% control, respectively) outperformed Accent, Monument, and Revolver (47%, 43%, and 7% control, respectively) 5 WAIT. Carpetgrass control was greatest 10 WAIT. Tribute Total, Celsius, MSMA, Accent, Monument, and Revolver exhibited 100%, 100%, 93%, 92%, 53%, and 7% control, respectively, 10 WAIT. Research concludes that viable options are available for safe carpetgrass control in bermudagrass putting greens with sequential applications at low use rates." |
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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):
Hoyle, J. A., C. M. Straw, and G. M. Henry. 2013. Postemergence control of common carpetgrass in a hybrid bermudagrass putting green. South. Weed Sci. Soc. Proc. 66:p. 254. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=341
Last checked: 08/12/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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