Full TGIF Record # 70058
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Web URL(s):https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2000/55-508.pdf
    Last checked: 05/03/2017
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Publication Type:
i
Report
Author(s):Vincelli, P.; Dixon, E.; Williams, D.
Author Affiliation:Vincelli and Dixon: Department of Plant Pathology; and Williams: Department of Agronomy, University of Kentucky, Lexington, Kentucky
Title:Effect of fungicides on maintenance of turf quality of creeping bentgrass, 1999
Section:Turf grass reports
Other records with the "Turf grass reports" Section
Source:Fungicide and Nematicide Tests. Vol. 55, 2000, p. 508-509.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:2
Keywords:TIC Keywords: Quality; Application rates; Agrostis stolonifera; Dollar spot; Sclerotinia homoeocarpa; Brown patch; Rhizoctonia solani; Anthracnose; Colletotrichum graminicola; Red leaf spot; Pyrenophora erythrospila; Disease control; Fungicides; Fungicide evaluation; Fungicide combinations; Environmental factors; Localized dry spots
Cultivar Names:Penncross
Abstract/Contents:"The test was conducted on a Maury silt loam located at the University of Kentucky Turf Center near Lexington. The turf was maintained at 0.19 in. mowing height, irrigated as needed, and fertilized with 1 lb N as 22-0-16 Scott's Fertilizer on 3 Nov 98. Plots measured 4 ft X 4 ft with 2 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 Spray Systems 8003E flat-fan nozzles delivering 2.5 gal/1000 sq ft. All treatments were first applied on 26 May when dollar spot was first noticed; remaining sprays were applied according to the schedules indicated in the table. Visual assessment of turf quality based on turf density, color, and other characteristics was taken on the days specified below. All data were analyzed using ANOVA and Waller-Duncan k-ratio t-test, (k=100, P=0.05). AUTQC is the Area Under the Turf Quality Curve. Weather was generally favorable for dollar spot (DS) activity from mid-May through early Jul. Most of the variation in turf quality (TQ) on 12 Jul was due to differences in control of DS. Because of dry and generally hot weather through most of Jul and Aug, DS was not active by the time of TQ assessments in Aug, although residual damage from DS was still evident in the most severely affected plots. Weather in early to mid-summer was favorable for brown patch (BP), and that disease contributed to foliar necrosis in the TQ ratings taken in Aug. Red leaf spot (RLS) and foliar anthracnose (An) both contributed to foliar necrosis in Aug but were not as important as was BP. Localized dry spot (LDS) of suspected biotic origin was also a factor contributing to TQ deterioration in the 20 Aug assessment. See other reports in this volume for details on activity of these diseases. Plots treated with the combination of Compass 50WG and Banner MAXX exhibited a subtle darker green color and widening of leaf blades; this was detectable in two of three replications on 3 Aug. No other phytotoxicity nor growth regulator effect was noted."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vincelli, P., E. Dixon, and D. Williams. 2000. Effect of fungicides on maintenance of turf quality of creeping bentgrass, 1999. Fungicide Nematicide Tests. 55:p. 508-509.
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https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2000/55-508.pdf
    Last checked: 05/03/2017
    Requires: PDF Reader
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