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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2006/T010.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Luc, J. E.;
Martin, S. B. |
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| Author Affiliation: | Clemson University, Florence, South Carolina |
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| Title: | Control of spring dead spot in bermudagrass putting greens in South Carolina, 2004-2005 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | F&N Tests. Vol. 61, 2006, p. T010. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cynodon dactylon; Cynodon transvaalensis; Spring dead spot; Disease control; Application rates; Fungicide trials; Disease severity; Golf greens
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| Cultivar Names: | Tifeagle |
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| Abstract/Contents: | "Experiments were conducted on two golf course greens in Columbia, SC. The greens were mature stands (5 to 8 yr old) of bermudagrass with histories of spring dead spot. Turf was mowed daily during the growing season to a height of 0.1 to 0.15 in. Aerification was performed 3 times per season. Light vertical mowing was carried out weekly during the growing months. Topdressing was conducted at three-week intervals, except in winter months. Turf was fertilized with approximately 0.25 lb nitrogen per 1000 sq ft. per month. Irrigation with 0.25 in of water was applied as needed. Plots were 6 ft x 20 ft and were visually evaluated in Jun 04, prior to fall treatments for disease severity. Treatments were arranged in a randomized complete block design, blocked based on spring dead spot severity the previous spring, and replicated four times on each green. Fungicides were applied in water equivalent to 1 gal per 1000 sq ft. with a CO2-powered sprayed at 34 psi using TeeJet 8002 flat-fanned nozzles. Immediately following fungicide treatments, the plots were irrigated with 0.25 in of water to move the fungicides into the rootzone. Fungicide application dates are noted in the footnotes following Table 1. Data were analyzed using SAS PROC MIXED procedure with treatment means separated using Tukey-Kramer procedures with an experimentwise error of a = 0.05. Since no interaction between treatment and location were observed, data from each green were combined to give a better estimation of treatment means and standard errors. Differences were observed between treatments and untreated control plots on all three evaluation dates. The treatment with the greatest reduction in percent disease was 4 oz. of Rubigan applied on 15 Aug 04, 1 Sep 04, and 15 Sep 04 with 94.6% less disease than untreated control plots. The greatest increase in growth within patch was with 4 oz of Rubigan on 15 Aug 04, 1 Sep 04, and 15 Sep 04, increasing growth more than 500% compared to untreated control plots. The most effective treatments consisted of 2 or 3 split applications of Rubigan, similar to programs used for Poa annua control. In these treatments Poa control is an added benefit to spring dead spot control. There was relatively good efficacy from two applications of Banner Maxx at 4 oz or Rubigan at 6 oz, followed by Clearys 3336 at 4 oz each with 82% less disease and 400% more growth in patch than untreated control plots. Two applications of Eagle and 3 applications of Rubigan at 2 fl oz were less effective." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Luc, J. E., and S. B. Martin. 2006. Control of spring dead spot in bermudagrass putting greens in South Carolina, 2004-2005. F&N Tests. 61:p. T010. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2006/T010.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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MSU catalog number: SB 951.3 .F82 |
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