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Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou241.pdf Last checked: 10/18/2011 Requires: PDF Reader |
Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
Publication Type:
| Refereed |
Author(s): | Koch, Paul L.;
Kerns, James P.;
Stier, John C. |
Author Affiliation: | Koch and Kerns: Department of Plant Pathology; Stier: Department of Horticulture, University of Wisconsin, Madison, Wisconsin |
Title: | Spring time fungicide applications delay and reduce dollar spot disease of turfgrass in Wisconsin |
Section: | Diseases (plant pathology) Other records with the "Diseases (plant pathology)" Section
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Meeting Info.: | Santiago, Chile: July 26-30 2009 |
Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 1, 2009, p. 241-252. |
Publishing Information: | Madison, WI: International Turfgrass Society |
# of Pages: | 12 |
Keywords: | TIC Keywords: Fungicide application; Dollar spot; Chemical control; Disease control; Disease development; Disease severity; Fungicides
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Abstract/Contents: | "Dollar spot (Sclerotinia homoeocarpa F. T. Bennett) is a common turfgrass disease on golf courses throughout the world. Repeated fungicide applications are required to control dollar spot and maintain acceptable turf conditions during the playing season. Golf course fairways comprise the majority of treated areas and repeated fungicide applications can impact maintenance budgets. Our study was conducted to determine if a single application of a contact, systemic, or combination of fungicides applied several weeks prior to conducive conditions for disease development would significantly delay dollar spot symptoms and reduce overall fungicide use. Propiconazole, iprodione, chlorothalonil, boscalid, and tank-mixes of propiconazole plus iprodione and propiconazole plus chlorothalonil were applied to a Wisconsin golf course fairway on 3 May 2006 and 2 May 2007 and visual estimates of disease severity were recorded until mid- or late August each growing season. All treatments decreased dollar spot symptoms compared to the untreated control in both years with the exception of chlorothalonil in 2007. Propiconazole or iprodione provided similar levels of control and were more effective than chlorothalonil. Boscalid, currently recommended for early-season dollar spot control, provided similar control compared to propiconazole in 2006 but was less effective in 2007. The duration of dollar spot suppression was similar between the applications of a single fungicide compared to the two-way combinations. Applying a systemic fungicide such as propiconazole, boscalid, or iprodione early in the May provided acceptable control into Jul, reducing the number of overall fungicide applications needed to maintain acceptable turf on golf course fairways." |
Language: | English |
References: | 19 |
Note: | Partial Reprint appears in Carolinas Green, November/December 2009, p. 18 Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Koch, P. L., J. P. Kerns, and J. C. Stier. 2009. Spring time fungicide applications delay and reduce dollar spot disease of turfgrass in Wisconsin. Int. Turfgrass Soc. Res. J. 11(Part 1):p. 241-252. |
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| MSU catalog number: b2548899 |
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