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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=218
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Gambrell, N. J.;
Estes, A. G.;
McCarty, B. |
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| Author Affiliation: | Clemson University, Clemson, SC |
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| Title: | Purple nutsedge control in bermudagrass turf |
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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.: | Charleston, South Carolina: January 23-25, 2012 |
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| Source: | 2012 Proceedings, Southern Weed Science Society. Vol. 65, 2012, p. 146. |
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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: Combination treatments; Comparisons; Cynodon; Cyperus rotundus; Herbicide efficacy; Herbicide evaluation; Postemergence weed control; Sulfentrazone
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| Abstract/Contents: | "FMC Corp. is exploring the possibility of introducing several combination products in the turfgrass market for increased efficacy compared to stand along products. The purpose of the study was to determine the efficacy of combinations of sulfentrazon with other compounds for postemergence control of purple nutsedge. Purple nutsedge tends to be problematic in warm season grasses, spreading by producing tubers in chains, which are connected by rhizomes. For these and other reasons, purple nutsedge is considered to be the world's worst weed. A study with twelve treatments was used to evaluate the efficacy of sulfentrazon combination products along with industry standards. The study was initiated August 24, 2011 with rating dates on August 30, September 9, September 20, and October 20, 2011 at 6, 16, 27, and 57 days after treatment (DAT), respectively. Premix FMC treatments included: carfentrazone plus metsulfuron 66WDG @ 0.269, 0.384, and 0.412 lb ai/a; sulfentrazone plus metsulfuron 35WDG @ 0.049, and 0.068 lb ai/a; sulfentrazone plus carfentrazone 3.5SC @ 0.230 and 0.410 lb ai/a; Dismiss South 4L (sulfentrazone + imazathapyr) @ 0.290 and 0.450 lb ai/a; Certainty 75DF (sulfosulfuron) @ 0.06 lb ai/a; Sedgehammer 75WGD (halosulfron-methyl) @ 0.06 lb ai/a; and, Monument 75DF (trifloxysulfuron-sodium) @ 0.03 lb ai/ac. All treatments were applied only once. The study was conducted near Clemson University in an irrigated, common bermudagrass field maintained at two inches and heavily infested with purple nutsedge. Applications were made using a CO©ü powered sprayer calibrated at 20 GPA. Three treatment replications were applied on 2x3 meter plots, using a randomized complete block design. Visual ratings evaluated percentage control of purple nutsedge. Ratings were based on a 0-100%, 0% indicating no control and 100% indicating complete control. All applications received a non-ionic surfactant at 0.25 % V/V. ANOVA was evaluated with alpha at 0.05. Of the FMC experimental combination products, Carfentrazone plus metsulfuron @ 0.412 lb ai/a provided best control at 57 DAT (October 20, 2011), at 63%. Of the remaining treatments, Dismiss South @ 0.290 and 0.450 lb ai/a; Certainty @ 0.06 lb ai/a; Sedgehammer @ 0.06 lb. ai/a; and, Monument @ 0.03 lb ai/a provided >=80% control at 57 DAT (October 20, 2011). Repeat applications and screening of additional products will be continued in the future for timing and control of Purple Nutsedge." |
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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):
Gambrell, N. J., A. G. Estes, and B. McCarty. 2012. Purple nutsedge control in bermudagrass turf. South. Weed Sci. Soc. Proc. 65:p. 146. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=218
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
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