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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=100
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): | Straw, C. M.;
Hoyle, J. A.;
Henry, G. M. |
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| Author Affiliation: | University of Georgia, Athens, GA |
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| Title: | Common carpetgrass (Axonopus fissifolius) control in a bermudagrass rough |
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| Section: | Posters
Other records with the "Posters" 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. 13. |
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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: Axonopus affinis; Comparisons; Control methods; Cynodon; Golf rough; MSMA; Thiencarbazone + iodosulfuron + dicamba; Weed control
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| Trade Names: | Celsius |
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| Abstract/Contents: | "Field experiments were conducted at Pine Hills Golf Club in Winder, GA and the University of Georgia Golf Club in Athens, GA to examine the control of carpetgrass in a common bermudagrass rough maintained at 5 cm. Carpetgrass cover (70 to 95%) within each plot was determined at the time of initial herbicide application. Treatments were applied to plots (1m x 1m) arranged in a randomized complete block design with four replications. Treatments included a non-treated check, MSMA at 2.29 kg ai ha-1, foramsulfuron (Revolver) at 0.058 kg ai ha-1, thiencarbazone + iodosulfuron + dicamba (Celsius) at 0.171 kg ai ha-1, thiencarbazone + foramsulfuron + halosulfuron (Tribute Total) at 0.127 kg ai ha-1, nicosulfuron (Accent) at 0.035 kg ai ha-1, and trifloxysulfuron (Monument) at 0.028 kg ai ha-1. Initial applications were conducted on 5 July 2012 and sequential applications were made 4 weeks later (8 August 2012) using the same rates. Treatments were applied using a CO pressurized backpack sprayer equipped with XR8004VS nozzle tips calibrated to deliver 375 L ha-1 at 221 kPa. Greenhouse experiments were conducted at the Crop and Soil Science greenhouse complex in Athens, GA to mimic previous field experiments. Carpetgrass was harvested from a rough at the University of Georgia Golf Club in Athens, GA with a standard USGA cup cutter. Specimens were planted into 15.2 cm round nursery pots and placed within the greenhouse with temperatures maintained at 32/26 C (day/night). Specimens were acclimated to the greenhouse environment for 2 weeks and contained 100% carpetgrass cover prior to trial initiation. Treatments and experimental design were identical to the field experiments. Treatments were applied to individual carpetgrass specimens. The trial was repeated in time and contained four replications. Initial applications were conducted on 14 November 2012 and sequential applications were made 4 weeks later (5 December 2012) using the same rates. Percent bermudagrass phytotoxicity and carpetgrass cover were visually evaluated 2, 4, and 8 weeks after initial treatment (WAIT) for field experiments. Percent carpetgrass control for each treatment was calculated relative to the initial carpetgrass cover. Percent carpetgrass control was visually evaluated weekly throughout greenhouse experiment trials. Plants were destructively harvested 8 WAIT and above ground dry biomass (g) was recorded. 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. MSMA, Tribute Total, and Celsius exhibited moderate (44 to 55%) carpetgrass control 4 WAIT. All other treatments resulted in <= 20% carpetgrass control 4 WAIT. MSMA and Celsius exhibited the greatest control (94 and 92%, respectively) 8 WAIT. These results coincide with minimal dry weight biomass (2.0 g and 1.9 g, respectively) collected from the greenhouse trial. Tribute Total provided 77% carpetgrass control 8 WAIT, while all other treatments resulted in <= 30% carpetgrass control. Research concludes that viable options are available for long-term carpetgrass control in a bermudagrass rough with MSMA and Celsius." |
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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):
Straw, C. M., J. A. Hoyle, and G. M. Henry. 2013. Common carpetgrass (Axonopus fissifolius) control in a bermudagrass rough. South. Weed Sci. Soc. Proc. 66:p. 13. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2013 Proceedings-SWSS.pdf#page=100
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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