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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T005.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Kaminski, J. E.;
Putman, A. I. |
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| Author Affiliation: | Dept. of Plant Science; University of Connecticut, Storrs, CT |
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| Title: | Preventive control of brown patch in a colonial bentgrass fairway with various 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. T005-T006. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Agrostis tenuis; Application timing; Fungicide efficacy; Fungicide evaluation; Golf fairways; Preventive control; Rhizoctonia blight; Rhizoctonia solani
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| Cultivar Names: | Allister |
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| Abstract/Contents: | "Fungicides were evaluated for their effect on brown patch control on a colonial bentgrass fairway when applied on a preventive basis. This study was conducted at the University of Connecticut Plant Science Research Facility located in Storrs, CT. Mowing was performed 4 times weekly to a height of 0.5-in. Fungicides were applied with a CO2 pressurized (40 psi) sprayer equipped with a flat-fan nozzle, and calibrated to deliver 2.0 gal water per 1000 ft2. Treatments were applied on the dates footnoted in the data table. Plots measured 3 ft x 6 ft, and were arranged in a randomized complete block with four replications. Percent of plot area blighted by R. solani was assessed visually on a linear 0 to 100% scale where 0 = entire plot area green and healthy, and 100 = entire plot area blighted. Treatments with ratings exceeding 5.0% plot area blighted by R. solani subjectively were considered to be unacceptable or at the threshold for re-treatment of a golf course fairway. Disease pressure was considered severe between late-Jun and early-Aug. Brown patch became active in the study site immediately following the initial application of fungicides on 26 Jun. Disease pressure was initially slow to develop, but brown patch severity increased rapidly in mid-Jul and plots not treated with any fungicide had an average of 57% brown patch by 19 Jul (Table 1). Two weeks after initial treatments, excellent brown patch suppression (ā¤ 5%) was achieved within plots treated with Tartan (1.0 and 1.3 fl oz), Lynx (0.75, 1.0, and 1.5 fl oz), Nativo (1.2 fl oz), Confidential A (0.2 and 0.4 oz), Heritage TL, Confidential B (3.0 and 5.0 fl oz), Insignia, Spectator Ultra, Manicure Ultra, Manicure 6L, Disarm tank mixed with Spectator Ultra or Manicure Ultra, Disarm, and Quali-Pro Iprodione. On 12 Jul, between 6 and 33% brown patch was observed within plots treated with Tartan (1.9 fl oz), Nativo (0.6 fl oz), Headway (1.5 fl oz), Trinity, Spectator Ultra + Manicure Ultra, ACA1820, and ACA2663. Brown patch activity peaked on 19 Jul and untreated plots had an average of 57% brown patch. Except for Confidential B and C (both rates), Trinity, Spectator Ultra, and both ACA surfactants, all treatments provided excellent to acceptable brown patch suppression on 19 Jul. Brown patch severity rapidly decreased in early to mid-Aug. While suppression was achieved after application, plots treated with 2.0 fl oz of Spectator Ultra did not provide sufficient suppression of brown patch when applied on a 21-day interval." |
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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):
Kaminski, J. E., and A. I. Putman. 2008. Preventive control of brown patch in a colonial bentgrass fairway with various fungicides, 2007. PDMR: Plant Dis. Manage. Rep. 2:p. T005-T006. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T005.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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