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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2005.95.6.S1#page=49
Last checked: 10/20/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Jo, Y.;
Niver, A.;
Rimelspach, J.;
Boehm, M. |
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| Author Affiliation: | Department of Plant Pathology, The Ohio State University, Columbus, Ohio |
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| Title: | Fungicide sensitivity of Sclerotinia homoeocarpa isolates from golf courses in Ohio |
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| Section: | APS Abstracts Submitted for Presentation at the 2005 APS Annual Meeting
Other records with the "APS Abstracts Submitted for Presentation at the 2005 APS Annual Meeting" Section
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| Source: | Phytopathology. Vol. 95, No. 6, June Supplement 2005, p. S49-S50. |
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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: Sclerotinia homoeocarpa; Fungicides; Fungicide resistance; Dollar spot; Iprodione; Propiconazole; Thiophanate-methyl; Chemical sensitivity
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| Geographic Terms: | Ohio |
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| Abstract/Contents: | "Resistance to several classes of fungicides has been reported in Sclerotinia homoeocarpa (causal agent of dollar spot). The goals of this research were to develop in vitro fungicide sensitivity assays using single discriminatory concentrations of thiophanate-methyl, propiconazole and iprodione to predict fungicide efficacy in the field and to use these assays to subsequently determine the prevlance of fungicide resistance within S. homoeocarpa isolates recovered from golf courses throughout Ohio. EC50 values and discriminatory concentrations for each fungicide were determined (thiophanate-methyl = 500 μg a.i./ml; propiconazole = 0.1 μg a.i./ml and iprodione = 1 μg a.i/ml). EC50D values were estimated based on related mycelial growth of S. homoeocarpa on PDA amended with the discriminatory concentration of each fungicide using regression analysis. Field trials conducted at 10 locations in 2002 and 2003 revealed that results of the in vitro assays were highly correlated with fungicide efficay in the field. When used to screen 192 S. homoeocarpa issolates from 55 golf courses throughout Ohio, the in vitro assays revealed that thiophanate-methyl and propiconazole resistance was prevalent (34 to 18 courses, respectively). The prevalence of iprodione on S. homoeocarpa was low (1/55 golf courses)." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jo, Y., A. Niver, J. Rimelspach, and M. Boehm. 2005. Fungicide sensitivity of Sclerotinia homoeocarpa isolates from golf courses in Ohio. Phytopathology. 95(6):p. S49-S50. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2005.95.6.S1#page=49
Last checked: 10/20/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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