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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=99
Last checked: 07/31/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Henry, G. M.;
Williams, T.;
Cooper, T.;
Hephner, A. J. |
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| Author Affiliation: | Texas Tech University, Lubbock, TX |
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| Title: | Postemergence control of swinecress in a bermudagrass rough |
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| Section: | Posters
Other records with the "Posters" Section
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| Meeting Info.: | Little Rock, Arkansas: January 25-27, 2010 |
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| Source: | 2010 Proceedings, Southern Weed Science Society. Vol. 63, 2010, p. 49. |
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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-ethyl + 2,4-D + Mecoprop + Dicamba; Lepidium didymum; Herbicide evaluation; Metsulfuron methyl; Postemergence weed control; Trifloxysulfuron; Weed profile
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| Abstract/Contents: | "Lesser swinecress (Coronopus didymus (L.) Sm.) is a summer annual or biennial broadleaf weed that emerges from February to October with peaks of emergence in April and September. Tolerance to low mowing, heavy traffic, and prolific seed production has increased the prevalence of this weed in turfgrass environments. Field experiments were conducted at the Pecos County Municipal Golf Course in Fort Stockton, TX in the summer of 2009 to examine the postemergence control of lesser swinecress. Studies were located on established infestations of lesser swinecress present in a common bermudagrass rough cut to a height of 5.0 cm. Plots measured 1.5 x 1.5 m and were arranged in a randomized complete block design with four replications of treatments. Treatments were applied using a CO2 backpack sprayer equipped with XR8004VS nozzle tips and calibrated to deliver 375 L/ha at 221 kPa. Treatments were initiated on June 19, 2009 and consisted of single or sequential applications of trifloxysulfuron at 0.028 kg ai/ha, single or sequential applications of metsulfuron at 0.072 kg ai/ha, single or sequential applications of carfentrazone + 2,4-D + mecoprop + dicamba at 0.22 kg ai/ha, and BAS 8004H at 0.050 kg ai/ha. Sequential applications were made on July 17, 2009. A non-ionic surfactant was applied with BAS 8004H treatments at a rate of 1% v/v. Visual estimates of percent lesser swinecress control and common bermudagrass phytotoxicity were taken 1, 2, 4, 6, and 8 WAIT. Data were subjected to analysis of variance (ANOVA) and means were separated using Fisher's Protected LSD at the 0.05 significance level. No common bermudagrass phytotoxicity was observed throughout the length of the trial regardless of treatment. Control with trifloxysulfuron and metsulfuron treatments was 92 to 100% 2 WAIT. BAS 8004H treatments exhibited 84% control 2 WAIT, while control with carfentrazone + 2,4-D + mecoprop + dicamba was only 13 to 25%. No differences were observed between single and sequential treatments 8 WAIT. Control with trifloxysulfuron, metsulfuron, and BAS 8004H treatments remained constant 8 WAIT (95, 95 to 100, and 88%, respectively). Control with carfentrazone + 2,4-D + mecoprop + dicamba decreased to 13 to 15% 8 WAIT." |
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| Language: | English |
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| References: | 0 |
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| Note: | Reprint appears in Texas Tech University: Turfgrass Science Webpage, [2011], p. [1]
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Henry, G. M., T. Williams, T. Cooper, and A. J. Hephner. 2010. Postemergence control of swinecress in a bermudagrass rough. South. Weed Sci. Soc. Proc. 63:p. 49. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2010 Proceedings-SWSS.pdf#page=99
Last checked: 07/31/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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