Full TGIF Record # 105377
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Web URL(s):https://archive.lib.msu.edu/tic/its/articles/2005jou237.pdf
    Last checked: 09/29/2008
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Publication Type:
i
Refereed
Author(s):Royals, John K. II; Martin, S. Bruce; Camberato, James J.; Jeffers, Steven N.
Author Affiliation:Royals: Turfgrass Management Technology, Central Piedmont Community College, Charlotte, North Carolina; Martin, Camberato, and Jeffers: Entomology, Soils and Plant Sciences, Clemson University, Pee Dee Research and Education Center, Florence, South Carolina
Title:Development and evaluation of strategic fungicide programs for control of warm weather diseases in creeping bentgrass
Section:Diseases (plant pathology)
Other records with the "Diseases (plant pathology)" Section
Meeting Info.:Llandudno, Wales, UK: July 10-15 2005
Source:International Turfgrass Society Research Journal. Vol. 10, No. Part 1, 2005, p. 237-246.
Publishing Information:Aberystywth, Ceredigion, UK: International Turfgrass Society
# of Pages:10
Keywords:TIC Keywords: Fungicides; Fungicide evaluation; Fungicide programs; Fungus control; Rhizoctonia solani; Sclerotinia homoeocarpa; Rhizoctonia zeae; Disease control; Agrostis stolonifera; Brown patch; Dollar spot; Preventive control; Turfgrass quality; Fungicide combinations
Cultivar Names:Penncross; A-1; L-93; Crenshaw
Abstract/Contents:"Bentgrass (Agrostis palustris Huds.) is grown widely on golf course putting greens in the Southeastern United States. Brown patch (Rhizoctonia solani Kühn) and dollar spot (Sclerotinia homoecarpa Bennett) are major diseases of bentgrass in warm humid regions, and Rhizoctonia leaf and sheath spot (Rhizoctonia zeae Voorhees) occurs in hot, humid environments. Fungicides are necessary to maintain a viable putting surface when bentgrass is grown. Seven preventive and two curative fungicide programs were evaluated for disease control efficacy during June, July, and August of 1999, 2000, and 2001. The preventive programs, consisting of six fungicide treatments applied at low label rates on a 14-day schedule, were designed to deploy efficacious fungicides for control of particular diseases at different times as summer progressed. Curative applications were made after disease symptoms were present. The experiment was conducted on four cultivars of creeping bentgrass (Pencross, A-1, L-93, and Crenshaw). Preventive programs were more effective in controlling disease and maintaining good turf quality than the curative fungicide programs. Three preventive fungicide programs performed best over the three-year period in reducing the area under the disease progress curve for brown patch, Rhizoctonia leaf and sheath spot, and dollar spot. The fungicides iprodione and chlorothalonil, alone, or in combination with propiconazole or myclobutanil, were most effective for dollar spot control. For brown patch and Rhizoctonia leaf and sheath spot control, the fungicides azoxystrobin or chlorothalonil in combination with fosetyl-A1 were extremely effective when deployed in midsummer. This study demonstrated that strategic preventive fungicide deployment to control dollar spot, brown patch, and Rhizoctonia leaf and sheath spot prior to anticipated disease pressure, was more effective than curative fungicide applications for sustained disease control and improved turf quality. Fungicide efficacy, non-target effects, and changing disease pressures and causal agents determine the best fungicide or fungicide combination to deploy. Appropriate fungicide programs will differ based on the major disease pressures and environmental conditions encountered."
Language:English
References:18
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Royals, J. K., S. B. Martin, J. J. Camberato, and S. N. Jeffers. 2005. Development and evaluation of strategic fungicide programs for control of warm weather diseases in creeping bentgrass. Int. Turfgrass Soc. Res. J. 10(Part 1):p. 237-246.
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https://archive.lib.msu.edu/tic/its/articles/2005jou237.pdf
    Last checked: 09/29/2008
    Requires: PDF Reader
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MSU catalog number: SB 433 .I52 v. 10
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