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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T037.pdf
Last checked: 11/11/2016
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| Publication Type:
| Report |
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| Author(s): | Uddin, W.;
Benelli, J.;
Yenez, J. |
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| Author Affiliation: | The Pennsylvania State University, University Park, PA |
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| Title: | Management of brown patch on a golf course fairway with fungicides, 2007 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | PDMR: Plant Disease Management Reports. Vol. 2, 2008, p. TO37. |
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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: Agrostis tenuis; Disease control; Disease severity; Fungicide efficacy; Fungicide evaluation; Rhizoctonia blight; Rhizoctonia solani
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| Cultivar Names: | Bardot |
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| Abstract/Contents: | "The experiment was conducted at the Valentine Turfgrass Research Center, University Park, PA, on colonial bentgrass maintained under golf course fairway management conditions, mowed three times per week at 0.5-inch cutting height. The soil was Hagerstown silt loam with pH 6.7. The experimental turf area was fertilized with 1.0 lb nitrogen (IBDU) and 1.0 lb nitrogen (18-9-18) and per 1000 sq ft on 5 Jun. Scimitar (7.5 fl oz/A) was applied for cutworms on 8 May. Additionally, 1.0 lb nitrogen (Urea 46-0-0) was applied on 16 Jul prior to peak period of brown patch activity. Treatment plots, 3 ft x 6 ft, were arranged in a randomized complete block design with three replications. Applications were made with a CO2-powered sprayer, using a TeeJet 11008E nozzle, at 40 psi, in water equivalent to 2 gal per 1000 sq ft. The 14-day treatments were applied on 21 Jun, 5 and 19 Jul, 2 and 16 Aug, and 21-day treatments on 21 Jun, 12 Jul, and 2 Aug. Brown patch severity was assessed on 25 Jul, and 1, 8, 15, and 22 Aug. Data were subjected to analysis of variance and multiple comparisons of the mean values were made using the Waller-Duncan k-ratio test (k=100). Brown patch severity was moderate initially; however, it increased over time within three weeks during the course of the study. Prolonged periods of warm and humid weather were highly conducive for disease development. The untreated control on the 13 Jul showed nearly 40% turf area symptomatic, and it increased to over 60% over a period of four weeks. Almost all the treatments provided very good to excellent control of brown patch with less than 10% turf area symptomatic in the first disease assessment. There was no brown patch development in plots treated with Insignia (0.5 oz) and Heritage (0.2 oz) during the course of the study. Additionally, there was no brown patch development in plots treated with Prostar (2 oz) during the initial three assessment periods, and trace of the disease was observed during the last two assessment periods. Further traces of the disease was noted in plots treated with Emerald (0.18 oz), and SARS-346 40WP (0.75 oz) alone and tank-mixed with 3336, at 14-day intervals, and 3336 Plus (6 fl oz) at 21-day interval, during the course of the study. Daconil Ultrex (3.2 oz) and Banner MAXX (2 fl oz) were least effective among the fungicides tested in this study. No phytotoxicity was observed in the study." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is as abstract and tables only!
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Uddin, W., J. Benelli, and J. Yenez. 2008. Management of brown patch on a golf course fairway with fungicides, 2007. PDMR: Plant Dis. Manage. Rep. 2:p. TO37. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T037.pdf
Last checked: 11/11/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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