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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2005jou180.pdf
Last checked: 08/09/2010
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Zhang, Qi;
Fry, Jack;
Tisserat, Ned |
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| Author Affiliation: | Zhang and Fry: Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, Kansas; Tisserat: Department of Bioagricultural Sciences and Pest Management, Colorado State University, Fort Collins, Colorado |
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| Title: | Evaluation of plant defense activators for dollar spot and brown patch control on creeping bentgrass putting greens |
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| Section: | Diseases (plant pathology)
Other records with the "Diseases (plant pathology)" Section
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| Meeting Info.: | Llandudno, Wales, UK: July 10-15 2005 |
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| Source: | International Turfgrass Society Research Journal. Vol. 10, No. Part 1, 2005, p. 180-185. |
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| Publishing Information: | Aberystywth, Ceredigion, UK: International Turfgrass Society |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Dollar spot; Brown patch; Disease control; Application rates; Sclerotinia homoeocarpa; Rhizoctonia solani; Agrostis stolonifera; Golf greens; Fungicides; Chlorothalonil
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| Cultivar Names: | Cobra; Z-93 |
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| Abstract/Contents: | "Reduction in fungicide application with adequate disease control is a goal of environmentally responsible turfgrass managers. The objective of this experiment was to evaluate the efficacy of acibenzolar-S-methyl (ASM, 0.035 kg a.i. ha-1) and/or ^DDB-aminobutyric acid (BABA, 0.4, 0.8, and 1.6 kg a.i. ha-1) in conjunctin with chlorothalonil (2,4,5,6-tetracholoisophthalonitrile) applied at a rate lower than currently recommended for dollar spot (Sclerotinia homoecarpa F.T. Bennett.) and brown patch (Rhizoctonia solani Kuhn) control on creeping bentgrass (Agrostis palustris Huds.) putting greens. Field treatments were applied on 14-day intervals to a creeping bentgrass golf green during 2002 and 2003. Acibenzolar-S-methyl reduced dollar spot by at least 27% in 'Cobra' and 'L-93' creeping bentgrass. Combining chlorothalonil (4 kg a.i. ha-1) with ASM resulted in 44% fewer S. homoeocarpa infection centers compared to turfgrass recieving only chlorothalonil, but quality fell just below what would be considered aesthetically acceptable. Applications of BABA (0.8 kg a.i. ha-1) to L-93 resulted in 65% more S. homoeocarpa infection centers compared to untreated turfgrass in 2003. Brown patch was not affected by ASM, BABA, or their combination with chlorothalonil. The synergistic effect observed in dollar spot control with the applicaiton of ASM + chlorothalonil (4 kg a.i. ha-1) suggests this defense activator should be further evaluated for its potential to reduce fungicide requirements of creeping bentgrass putting greens." |
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| Language: | English |
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| References: | 22 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, Q., J. Fry, and Ned Tisserat. 2005. Evaluation of plant defense activators for dollar spot and brown patch control on creeping bentgrass putting greens. Int. Turfgrass Soc. Res. J. 10(Part 1):p. 180-185. |
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https://archive.lib.msu.edu/tic/its/articles/2005jou180.pdf
Last checked: 08/09/2010
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MSU catalog number: SB 433 .I52 v. 10 |
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