Full TGIF Record # 163339
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Web URL(s):https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T020.pdf
    Last checked: 11/14/2016
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Publication Type:
i
Report
Author(s):Vincelli, P.; Dixon, E.; Williams, D.; Burrus, P.
Author Affiliation:Vincelli and Dixon: Department of Plant Pathology; Williams and Burrus: Department of Plant and Soil Science, University of Kentucky, Lexington, KY
Title:Efficacy of fungicides for control of brown patch of creeping bentgrass on a sand-based green, 2007
Section:Turfgrass
Other records with the "Turfgrass" Section
Source:PDMR: Plant Disease Management Reports. Vol. 2, 2008, p. T020[1]-T020[2].
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:2
Keywords:TIC Keywords: Agrostis stolonifera; Disease control; Fungicide efficacy; Fungicide evaluation; Rhizoctonia blight; Rhizoctonia solani; Sand-based golf greens
Cultivar Names:Penncross
Abstract/Contents:"The test was conducted on a sand-based green located at the University of Kentucky Turf Research Center near Lexington. The turf was maintained at a 0.188-in. mowing height, and fertilized with 1.5 lb N/1000 sq ft as urea on 26 Oct 06, 1.5 lb N/1000 sq ft as urea on 8 Nov 06, and with 1.0 lb N/1000 sq ft as urea on 28 Jun 07 to promote brown patch development. Irrigation was applied twice daily to promote brown patch development beginning 18 Jun. Plots measured 3 ft x 3 ft with 1.5-ft borders, and were arranged in a randomized complete block design with three replications. Fungicide sprays were applied using a CO2-pressurized hand-held sprayer fitted with Spraying Systems 8003E flat-fan nozzles delivering 1.5 gal/1000 sq ft. Spray schedule treatments were first applied on 24 Apr, before brown patch was observed, with remaining applications made thereafter according to the schedules indicated in the tables (final application on 31 Jul). Trinity arrived late and was first applied on 22 May. Brown patch assessments were based on percent plot affected and ratings of verdure loss within patches (verdure is plant vigor measured by percent green foliage within diseased patches). The level of infestation by Poa annua was visually estimated on 1 May, when color differences between the two grass species and the presence of Poa annua seed heads facilitated discrimination. The amount of Poa annua per plot averaged 28.5 percent and did not differ significantly between treatments. Selected, representative data are provided because of space constraints. Data for brown patch were transformed (arcsine) and analyzed using ANOVA (α=0.05) and Waller-Duncan k-ratio t-test, (k=100). Although statistics provided are based on analysis of arcsine- transformed data, arithmetic means are presented in order to provide a better indication of the level of disease control provided by each treatment as well as the overall disease pressure in the trial. Weather was generally favorable for brown patch, and disease pressure was high from mid-Jul through the early-Sep. Most of the fungicides controlled brown patch except for the Biocontrol CX2250; while Emerald moderately controlled the disease. Three weeks after the treatments ended there was some breakdown in control especially with the Signature/Daconil tank mixes. No phytotoxicity or growth regulator effects were noted."
Language:English
References:0
Note:This item is as abstract and tables only!
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vincelli, P., E. Dixon, D. Williams, and P. Burrus. 2008. Efficacy of fungicides for control of brown patch of creeping bentgrass on a sand-based green, 2007. PDMR: Plant Dis. Manage. Rep. 2:p. T020[1]-T020[2].
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    Last checked: 11/14/2016
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