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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou181.pdf
Last checked: 10/18/2011
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| Publication Type:
| Refereed |
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| Author(s): | Cook, Phillip J.;
Landschoot, Peter J.;
Schlossberg, Maxim |
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| Author Affiliation: | Department of Crop and Soil Sciences, The Pennsylvania State University, University Park, Pennsylvania |
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| Title: | Suppression of anthracnose basal rot and improved putting green quality with phosphonate fungicides |
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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. 181-194. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 14 |
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| Keywords: | TIC Keywords: Anthracnose basal rot; Golf greens; Quality evaluation; Trichlorfon; Fungicides; Agrostis stolonifera; Poa annua
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| Abstract/Contents: | "Anthracnose basal rot, caused by Colletotrichum cereale Manns (Crouch, Clarke and Hillman) is a destructive disease of putting greens in the United States. Phosphonate fungicides suppress anthracnose symptoms, but efficacy varies with active ingredient (K-phosphite vs. fosetyl-Al), formulation, and rate and timing of application. The objectives of this study were to evaluate the response of C. cereale isolates to phosphorous acid in vitro, and determine if active ingredient and formulation of phosphonate fungicides provide differences in anthracnose symptom suppression and turfgrass quality on putting greens when applied at equal rates of phosphorous acid. None of the isolates used in the in vitro study were inhibited by phosphorous acid concentrations up to 1000 μg ml-1, and growth of two isolates increased with increasing concentrations of phosphorous acid. Of the phosphonate treatments included in the putting green study, fosetyl-Al formulated with a blue-green pigment provided the most consistent and highest degree of anthracnose symptom suppression over two growing seasons. The fact that fosetyl-Al/pigment suppressed anthracnose symptoms and a formulation of fosetyl-Al without the pigment did not when applied at the same rate, indicates that formulation differences may account for the improved anthracnose control. The only other phosphonate treatment that provided suppression of anthracnose was a non-commercial K-phosphite solution with no formulation enhancements, but this only occurred in 2005 and was less effective than fosetyl-Al/pigment. All phosphonate treatments improved turfgrass quality relative to the untreated control, but fosetyl-Al/pigment showed the highest quality ratings over both growing seasons." |
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| Language: | English |
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| References: | 30 |
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| Note: | Partial Reprint appears in Carolinas Green, November/December 2009, p. 18
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Cook, P. J., P. J. Landschoot, and M. Schlossberg. 2009. Suppression of anthracnose basal rot and improved putting green quality with phosphonate fungicides. Int. Turfgrass Soc. Res. J. 11(Part 1):p. 181-194. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou181.pdf
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MSU catalog number: b2548899 |
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