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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou151.pdf
Last checked: 10/18/2011
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| Publication Type:
| Refereed |
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| Author(s): | Benedetto, Daniel;
Hsiang, Tom |
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| Author Affiliation: | Department of Environmental Biology, University of Guelph |
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| Title: | Effect of azoxystrobin on dollar spot disease development in creeping bentgrass (Agrostis stolonifera) and kentucky bluegrass (Poa pratensis) |
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| Section: | Diseases (plant pathology)
Other records with the "Diseases (plant pathology)" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 1, 2009, p. 151-163. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 13 |
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| Keywords: | TIC Keywords: Azoxystrobin; Dollar spot; Disease development; Agrostis stolonifera; Poa pratensis; Fungicide application; Pathogens; Disease control; Cultural methods
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| Abstract/Contents: | "Dollar spot disease, caused by the fungus Sclerotinia homoeocarpa F.T. Bennett is common on intensively managed creeping bentgrass (Agrostis stolonifera L.) and annual bluegrass (Poa annua L.), and other turfgrasses. Frequent chemical applications during the growing season are made to control this disease. Previous observations state that application of fungicides such as azoxystrobin can increase the level of disease within the same growing season. The purpose of this study was to quantify the extent of disease increase caused by an application of azoxystrobin the previous year. In three field tests on creeping bentgrass between 2005 and 2007, a single application of azoxystrobin in the late fall was found to increase the incidence of dollar plot several fold on treated plots in the following summer. In addition, this study also found a slight enhancement of dollar spot incidence on Kentucky bluegrass (Poa pratensis L.), which has not been previously reported. Although the cause of this disease enhancement is not known, the physical and chemical characteristics of azoxystrobin, along with turfgrass cultural practices and the finding of the longer term effect from this study, implies that the phenomenon stems from non-target effects on microbial populations of leaves or soil rather than a direct long term effect on the plants. Studies on phyllosphere communities may shed light on this phenomenon and point out directions for future research." |
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| Language: | English |
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| References: | 42 |
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| Note: | Partial Reprint appears in Carolinas Green, November/December 2009, p. 19
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Benedetto, D., and T. Hsiang. 2009. Effect of azoxystrobin on dollar spot disease development in creeping bentgrass (Agrostis stolonifera) and kentucky bluegrass (Poa pratensis). Int. Turfgrass Soc. Res. J. 11(Part 1):p. 151-163. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou151.pdf
Last checked: 10/18/2011
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MSU catalog number: b2548899 |
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