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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=441
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): | Besler, B. A.;
Grichar, W. J.;
Taylor, J. M.;
Langston, V. B.;
Richburg, J. S.;
Jahn, R. |
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| Author Affiliation: | Texas Agricultural Experiment Station, Beeville; Mississippi State Univ., Starkville and Greenville; Dow AgroSciences, The Woodlands, TX; Texas Cooperative Extension, Wharton. |
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| Title: | Turfgrass tolerance to reduced rates of Clincher and DE-638 |
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| Section: | Posters
Other records with the "Posters" 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. 343. |
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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: Cyhalofop-butyl; Cynodon dactylon x Cynodon transvaalensis; Eremochloa ophiuroides; Herbicide evaluation; Herbicide resistance; Penoxsulam; Stenotaphrum secundatum; Zoysia japonica
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| Cultivar Names: | Raleigh; Empire; Tifway; Common |
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| Trade Names: | Clincher; DE-638 |
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| Abstract/Contents: | "Field studies were conducted during the 2003 growing season near Wharton, Texas and the Plant Science Research Center (PSRC) at Mississippi State University to determine the effects of Clincher (cyhalofop-butyl) and DE-638 (Penoxsulam) on 'Raleigh' St. Augustine, 'Empire' zoysiagrass, 'Tifway' bermudagrass, and 'Common' centipedegrass. Clincher was applied at 0.15, 1.5, 3.7 and 15.0 fl oz/A while DE-498 was applied at 0.026, 0.29, 0.72 and 2.85 fl oz/A. Both herbicides were applied with a CO2 backpack sprayer calibrated to deliver 20 GPA at Wharton and 25 GPA at the PSRC. Agri-dex at 2.5% v/v was included with all herbicide treatments. Grasses were approximately 0.75 to 3 inches in height at time of application. The test design was a randomized complete block with 4 replications. At Wharton, no stunting or yellowing was noted on either St. Augustine and Zoysiagrass when rated 1, 3 and 7 days after application (DAA). Clincher at 15.0 fl oz/A caused 4% stunting and yellowing on St Augustine grass, when rated 14 DAA, while DE-638 caused 2% stunting and yellowing. At 21 DAA, Clincher at 15.0 fl oz/A caused 2% stunting while DE-638 at 2.85 fl oz/A resulted in 1.5% stunting. No yellowing was observed at this rating date. With zoysiagrass, no stunting or yellowing was noted with Clincher or DE-638 at either the 14 or 21 DAA ratings. Significant 'Tifway' bermudagrass injury (yellowing) was noted 4, 7, and 21 DAA with Clincher at 15.0 fl oz/A at the PSRC test site. At 21 DAA injury was > 40%. However, injury was not evident when rated 35 DAA. Also, Clincher at 3.7 fl oz/A stunted bermudagrass 23% when rated 7 DAA but was low or non-existent at subsequent ratings. Clincher at 15.0 fl oz/A also injured centipedegrass 3, 23 and 53% respectively, when rated 4, 7 and 21 DAA but fully recovered by the 35 DAA rating. Significant injury (yellowing) with Clincher at 3.7 fl oz/A only caused stunting when rated 7 DAA. No injury was observed with DE-638 with either grass species." |
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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):
Besler, B. A., W. J. Grichar, J. M. Taylor, V. B. Langston, J. S. Richburg, and R. Jahn. 2004. Turfgrass tolerance to reduced rates of Clincher and DE-638. South. Weed Sci. Soc. Proc. 57:p. 343. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=441
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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