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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/pdmr/volume3/abstracts/t49.asp
Last checked: 04/26/2017
Access conditions: Item is within a limited-access website
Notes: Report Summary
https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T049.pdf
Last checked: 11/11/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Uddin, W.;
Benelli, J. |
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| Author Affiliation: | Department of Plant Pathology, The Pennsylvania State University, University Park, Pennsylvania |
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| Title: | Control of brown patch on a golf course fairway with fungicides, 2008 |
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| Source: | PDMR: Plant Disease Management Reports. Vol. 3, 2009, p. T049. |
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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; Fungicide efficacy; Fungicide evaluation; Golf fairways; 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-in. 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 1,000 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 1,000 sq ft. The 14-day treatments were applied on 4 and 18 Jun, and 2 and 18 Jul, and 21-day treatments on 4 and 25 Jun, and 16 Jul. Brown patch severity was assessed on 10 Jun, and 3, 16, and 25 Jul using a 0 to 10 index (0=turf asymptomatic; 10=>90% turf area symptomatic). Data were subjected to analysis of variance and multiple comparisons of the mean values were made using the Waller-Duncan k-ratio test. Brown patch severity was moderate in untreated control plots initially in June; however, it increased over time exceeding Index 6 in later part of July. Prolonged periods of warm and humid weather with heavy morning dews in the turf canopy were highly conducive for disease development. Twenty-one of the thirty-five treatments provided excellent control of brown patch in early phase of the disease development. Most of the treatment continued to provide good to excellent control during the course of the study. Although traces of brown patch was observed in some of these treatment plots during the initial assessment, no brown patch symptoms were evident in plots treated with eight of these treatments in subsequent weeks. Heritage TL at high rate (2 fl oz) and the low rate (1 fl oz) tank-mixed Rhapsody, Heritage MAXX (1 fl oz), Concert (6.2 fl oz), Headway (1.5 fl oz), Medallion (0.5 oz), Chipco 26GT (4 fl oz), Trinity (1 fl oz), Insignia high (0.9 oz) and low (0.5 oz) rates, and Prostar (2 oz) at 14-days and Disarm (0.27 fl oz) and 26/36 (4 oz) at 21-days provided excellent control of brown patch. The high rate of Instrata (6 fl oz) also provided good control of the disease. No phytotoxicity was observed in the study." |
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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):
Uddin, W., and J. Benelli. 2009. Control of brown patch on a golf course fairway with fungicides, 2008. PDMR: Plant Dis. Manage. Rep. 3:p. T049. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/pdmr/volume3/abstracts/t49.asp
Last checked: 04/26/2017
Access conditions: Item is within a limited-access website
Notes: Report Summary
https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T049.pdf
Last checked: 11/11/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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