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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=209
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): | Tucker, B. J.;
McCarty, L. B.;
Cox, C. J.;
Estes, A. E. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC |
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| Title: | Postemergence control of Poa annua in dormant bermudagrass (Cynodon dactylon) |
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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.: | Memphis, Tennessee: January 26-28, 2004 |
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| Source: | Proceedings: Southern Weed Science Society: 57th Annual Meeting. Vol. 57, 2004, p. 111. |
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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: Cynodon dactylon; Dormancy; Herbicide efficacy; Herbicide evaluation; Poa annua control; Postemergence weed control
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| Abstract/Contents: | "Annual Bluegrass (Poa annua) is a persistent bunch type winter annual weed found throughout the southern United States, and also voraciously produces seedheads. The abundance of seedheads and pale green color disrupt uniformity, and make Poa annua particularly unsightly in dormant Bermudagrass (Cynodon dactylon). The objectives of this study were to evaluate Poa annua control with postemergence herbicide applications, and observe any differences in herbicide efficacy when applied in December or February. Two studies were performed during the winter of 2002-2003. Each study was performed on a common bermudagrass rough on a golf course in Pendleton, SC. Treatment applications for study one were made on December 17, 2002, and applications for study two were made on February 5, 2003. Treatments applied to studies one and two included: Atrazine 4.0 L at 2.24 kg ai/ha, Princep 4.0 L (simazine) at 2.24 kg ai/ha, Reward 2.0 EC (diquat) 0.56 kg ai/ha, Roundup Pro 4.0 L (glyphosate) 0.56 kg ai/ ha, QuickPro 66 DG (glyphosate + diquat) at 1.12 kg ai/ha, Finale 1.0 SC (glufosinate) at 1.68 kg ai/ha, Roundup Pro 4.0 L + Envoy 0.94 EC (glyphosate + clethodim) at 0.56 and 0.28 kg ai/ha, Finale 1.0 SC + Envoy 0.94 EC (glufosinate + clethodim) at 1.68 kg and 0.28 kg ai/ha. Finale 1.0 SC + Roundup Pro 4.0 L (glufosinate + glyphosate) at 1.68 kg ai/ha and 0.56 kg ai/ha, Kerb 50 WP (pronamide) at 1.68 kg ai/ha, Image 70 DG (imazaquin) at 0.56 kg ai/ha, Manor 60 DF (metsulfuron) 0.03 kg ai/ha, TranXit 25 DF (rimsulfuron) at 0.04 kg ai/ha, Battallion 75 DG (sulfosulfuron) at 0.02 kg ai/ha, Katana 25 DG (flazasulfuron) at 0.05 kg ai/ha, Revolver 2.34 SC (foramsulfuron) at 0.35 kg ai/ha, and Monument 75 WG (trifloxysulfuron) at 0.03 kg ai/ha. Velocity 80 WP (bispyribac sodium) at 0.15 kg ai/ha was applied to study 2 only. Poa annua control was rated weekly. Control was rated visually on a 0-100% scale with 0% = worst and 100% = best. Control >90% was considered acceptable Following December application, Finale provided excellent control (>90%) control from 3 weeks after treatment (WAT) to the final rating date (15 WAT). Finale + Envoy, Finale + Roundup Pro, and Roundup Pro + Envoy provided >90% Poa annua control from 5 WAT to 15 WAT. Quick Pro provided >90% control from 7 WAT to 15 WAT. Kerb, TranXit, Flazasulfuron, Revolver, and Monument provided >90% control at 15 WAT. Following February application, Finale + Envoy, Kerb, TranXit, and Monument were the only treatments providing excellent Poa annua control (>90%) at 12 WAT. Finale provided >90% control from 4 WAT to 8 WAT, and Roundup Pro and Diquat provided >90% control from 6 WAT to 8 WAT. In conclusion, Finale + Envoy, Kerb, TranXit, and Monument provided >90% control by the final rating date of both studies. Finale, QuickPro, Finale + Roundup Pro, and Roundup Pro + Envoy exhibited excellent control when applied in December, but control was short-lived when applied in February. Future research will include continued evaluation of adjusted rates, timings, and tank mixes of non-selective herbicides, as well as, the continued evaluation of sulfonylureas for Poa annua control." |
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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):
Tucker, B. J., L. B. McCarty, C. J. Cox, and A. E. Estes. 2004. Postemergence control of Poa annua in dormant bermudagrass (Cynodon dactylon). South. Weed Sci. Soc. Proc. 57:p. 111. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2004%20Proceedings-SWSS.pdf#page=209
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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