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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T023.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Vincelli, P.;
Dixon, E.;
Williams, D.;
Burrus, P. |
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| Author Affiliation: | Vincelli and Dixon: Dept. of Plant Pathology; Williams and Burrus: Dept. of Plant and Soil Science, University of Kentucky, Lexington, KY |
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| Title: | Influence of fungicide spray programs on turf quality in a mixed creeping bentgrass/Poa annua soil-based green, 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. T023[1]-T023[2]. |
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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 stolonifera; Colletotrichum graminicola; Disease control; Dollar spot; Fungicide efficacy; Fungicide evaluation; Fungicide programs; Golf greens; Poa annua; Rhizoctonia blight; Rhizoctonia solani; Sclerotinia homoeocarpa
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| Cultivar Names: | Penncross |
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| 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 0.188-in. mowing height and fertilized with 1.5 lb N/1000 sq ft as urea on 26 Oct 06, with 1.5 lb N/1000 sq ft as urea on 8 Nov 06, and with 1.0 lb N/1000 sq ft as 18-9-18 on 28 Aug 07. 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 Spraying Systems 8003E flat-fan nozzles delivering 1.5 gal/1000 sq ft, with the exception of the Biofungicide Blix-nix which was applied with 2.0 gal/1000 sq ft. Most treatments were first applied on 15 May, after dollar spot was first detected, with the remaining treatments applied according to the schedules indicated in the table (final application on 7 Aug). Banner MAXX/ Daconil Ultrex treatments were applied only once each to see if they could delay the onset of dollar spot. The Biofungicide Bli-Nix was first applied 18 Apr and the salicylic acid treatments were first applied 1 May. The surfactants Magnus and Duplex were applied on 3 Jul to see if they would increase turf quality. Where tank-mixes were alternated, sprays were applied every two weeks, with each tank-mix being applied once every four weeks. Visual estimates of turf quality were taken on several occasions and included deterioration of leaf color and density as well as developing leaf necrosis from several diseases. Selected, representative data are provided because of space constraints. The level of infestation by P. annua was visually estimated 1 May, when color differences between the two grass species and the presence of P. annua seed heads facilitated discrimination. The amount of P. annua per plot averaged 51.5 percent and did not differ significantly between treatments. Data were analyzed using ANOVA (α=0.05) and Waller-Duncan k-ratio t-test, (k=100). Weather was moderately favorable for disease development. Factors affecting turf quality in the plots included brown patch, anthracnose, drought stress, yellowing of Poa annua, and fairy ring. Signature tank-mixed with Chipco 26GT, Concert, Headway, Instrata, Syngenta Greens Solution Spray Program, Spectro, and CL-exp-10 consistently produced a higher quality turf than the control. The Salycylic acid treatments, Biofungicide Bli-Nix at 0.5 fl oz, and Magnus with Duplex did not enhance turf quality above the control. Acclaim caused phytotoxicity, yellowing the Poa annua in Jun and early Jul, but the turf recovered 2-3 weeks after the last spray." |
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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):
Vincelli, P., E. Dixon, D. Williams, and P. Burrus. 2008. Influence of fungicide spray programs on turf quality in a mixed creeping bentgrass/Poa annua soil-based green, 2007. PDMR: Plant Dis. Manage. Rep. 2:p. T023[1]-T023[2]. |
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| Web URL(s):
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Last checked: 11/14/2016
Requires: PDF Reader |
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