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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S201#page=3
Last checked: 10/16/2015
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): | Royals , J. K. II;
Martin, S. B. |
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| Author Affiliation: | Department of Plant Pathology and Physiology, Clemson University, Clemson, SC |
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| Title: | Strategic application of fungicides for control of brown patch on creeping bentgrass |
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| Meeting Info.: | 2001 APS/MSA/SON Joint Meeting, Salt Lake City, Utah: August 25-29, 2001 |
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| Source: | Phytopathology. Vol. 91, No. 6, June Supplement 2001, p. S203. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Fungicide application; Fungicides; Brown patch; Agrostis stolonifera; Rhizoctonia; Preventive control; Chlorothalonil; Azoxystrobin; Fosetyl Al; Thiophanate-methyl; Rhizoctonia zeae; Rhizoctonia solani; Visual evaluation; Disease severity
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| Cultivar Names: | Penn A-1; Crenshaw; L-93; Penncross |
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| Abstract/Contents: | "Creeping bentgrass (Agrostis stolonifera L.) is susceptible to brown patch (Rhizoctonia spp.) in summer months. Fungicides are used to control brown patch, but their strategic use in a changing epidemic has not been studied. In this study, preventive and curative fungicide programs were evaluated. Preventive treatments were made on a 14-day schedule, with low label rates of each product. Curative fungicides were cholorothalonil or azoxystrobin, at high label rates. Programs were replicated 4 times in RCB design within four cultivars, Penn A-1, Crenshaw, L-93, and Penncross, in a Latin square design. Plots were rated visually for disease severity and programs were compared using area under disease progress curves. Most preventive programs were more efficacious than curative programs. Programs with azoxystrobin or chlorothalonil plus fosetyl-Al performed well during periods of high disease pressure. Programs with thiophanate methyl failed to control R. zeae. R. solani AG 2,2 IIIB was present throughout the season. In 1999 and 2000, disease severity on Crenshaw exceeded that on other cultivars. Disease severity among other cultivars differed in 1999 and 2000. During periods of high disease pressure, fungicides effective against both R. solani and R. zeae needed to be used." |
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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):
Royals, J. K. II, and S. B. Martin. 2001. Strategic application of fungicides for control of brown patch on creeping bentgrass. Phytopathology. 91(6):p. S203. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2001.91.6.S201#page=3
Last checked: 10/16/2015
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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