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Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2006.96.6.S1#page=13 Last checked: 10/20/2015 Requires: PDF Reader Notes: Item is within a single large file |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Blunt, T. D.;
Hill, J. P.;
Brunk, G.;
Koski, T.;
Tisserat, N. |
Author Affiliation: | Colorado State University, Fort Collins, Colorado |
Title: | Relationship of gray snow mold development in Kentucky bluegrass to peristence of chlorothalonil under snow cover |
Section: | APS abstracts submitted for presentation at the 2006 APS Annual Meeting Other records with the "APS abstracts submitted for presentation at the 2006 APS Annual Meeting" Section
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Source: | Phytopathology. Vol. 96, No. 6, June Supplement 2006, p. S13. |
Publishing Information: | St. Paul, MN: American Phytopathological Society |
# of Pages: | 1 |
Keywords: | TIC Keywords: Poa pratensis; Typhula blight; Chlorothalonil; Application rates; Comparisons; Soil testing; Soil absorption; Application timing; Fungicides; Fungicide application; Snow
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Abstract/Contents: | "Gray snow mold caused by Typhula species is a major problem on golf courses where snow cover persists for periods exceeding 60 days. The disease is primarily managed by preventative fungicide applications in fall prior to permanent snow cover. We studied the persistence of two rates of chlorothalonil (Daconil Ultrex 82.5 WDG) following application on 24 Oct 2005 to a Kentucky bluegrass/annual bluegrass fairway at the Breckenridge CO golf course (2835 in elevation). Two 6.35-cm-diameter soil cores were removed periodically from each plot with a 1.2-m-long soil core sampler and were examined for snow mold development. Chlorothalonil residues were extracted from the verdure with toluene and analyzed by GC/MS. Snow mold development was visually observed in non-treated plugs by December 2005. Plots treated with both rates of chlorothalonil remained disease-free through February 2006. Chlorothalonil concentrations at both application rates decreased by 44% within 14 days after initial applications during a period of no snow cover but decreased only by an additional 12% during the 86 days after application when permanent snow cover was present. This suggests tha chlorothalonil dissipation is retarded by snow cover and that timing of fall fungicide applications as close as possible to permanent snow cover is important to enhance fungicide persistence." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Blunt, T. D., J. P. Hill, G. Brunk, T. Koski, and N. Tisserat. 2006. Relationship of gray snow mold development in Kentucky bluegrass to peristence of chlorothalonil under snow cover. Phytopathology. 96(6):p. S13. |
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| Web URL(s): http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2006.96.6.S1#page=13 Last checked: 10/20/2015 Requires: PDF Reader Notes: Item is within a single large file |
| MSU catalog number: SB 599 .P48 |
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