Full TGIF Record # 272520
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DOI:10.1094/PHYTO.2011.101.6.S1
Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2011.101.6.S1#page=41
    Last checked: 06/17/2016
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Publication Type:
i
Report
Author(s):Daniels, J.; Latin, R.
Author Affiliation:Purdue University, West Lafayette, IN
Title:Residual efficacy of fungicides for brown patch management
Section:2011 APS-IPPC Joint Meeting abstracts of presentations
Other records with the "2011 APS-IPPC Joint Meeting abstracts of presentations" Section
Meeting Info.:Honolulu, Hawaii: August 6-10, 2011
Source:Phytopathology. Vol. 101, No. 6s, June 2011, p. S41.
Publishing Information:Lancaster, Pennsylvania: The Society Intelligencer Printing Company for The American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Agrostis stolonifera; Application timing; Disease control; Fungicide application; Fungicide efficacy; Fungicide evaluation; Rhizoctonia solani
Abstract/Contents:"Brown patch, caused by Rhizoctonia solani, is a serious disease of creeping bentgrass on golf course turf. In many parts of the Midwestern U.S., disease-related damage is avoided by applying fungicides preventively during periods of hot humid weather, at 14- to 28-day intervals. Fungicides sometimes fail to provide adequate control for the entire application interval, suggesting that chemical protection is depleted sooner than expected. Our objective was to investigate the nature of the depletion of fungicide protection from turf. A bioassay was conducted with five fungicides (azoxystrobin, flutolanil, metconazole, polyoxin D, and pyraclostrobin) applied to field plots of creeping bentgrass maintained at fairway height. Samples (4.25 inch diameter cup-cutter plugs) were collected periodically (0, 3, 7, 10, 14, 17, and 21 days after treatment), inoculated with sorghum seed culture of R. solani, and incubated in a controlled environment for 48 hrs. For each sample date, the extent of fungicide protection was determined by measuring diameters of symptomatic turf on treated and untreated turf plugs. Although the shape of the depletion curves differed among fungicides, in general, protection declined rapidly 714 days after treatments were applied. Understanding the length of time that effective concentrations of fungicides remain within the turf may improve scheduling fungicide applications for brown patch control."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Daniels, J., and R. Latin. 2011. Residual efficacy of fungicides for brown patch management. Phytopathology. 101(6s):p. S41.
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DOI: 10.1094/PHYTO.2011.101.6.S1
Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2011.101.6.S1#page=41
    Last checked: 06/17/2016
    Requires: PDF Reader
    Notes: Item is within a single large file
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MSU catalog number: b2219736a
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