Full TGIF Record # 138429
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Web URL(s):http://usgatero.msu.edu/v07/n16.pdf
    Last checked: 08/13/2008
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Author(s):Murphy, James; Wong, Frank; Tredway, Lane; Crouch, Jo Anne; Inguagiato, John; Clarke, Bruce; Hsiang, Tom; Rossi, Frank
Author Affiliation:Murphy: Associate Extension Specialist; Crouch and Inguagiato: Graduate Students; Clarke: Director, Center for Turfgrass Science, Department of Plant Biology and Pathology, Rutgers University, New Brunswick, New Jersey; Wong: Assistant Plant Pathologist, Department of Plant Pathology, University of California, Riverside, California; Tredway: Associate Professor, and Extension Specialist, Department of Plant Pathology, North Carolina State University, Raleigh, North Carolina; Hsiang: Professor, Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada; Rossi: Associate Professor, Department of Horticulture, Cornell University, Ithaca, New York
Title:Best management practices for anthracnose on annual bluegrass turf
Source:USGA Turfgrass and Environmental Research Online. Vol. 7, No. 16, August 15 2008, p. [1-16].
Publishing Information:Far Hills, NJ: United States Golf Association, Green Section
# of Pages:18
Keywords:TIC Keywords: Anthracnose; Poa annua; Disease control; Fungicides; Fungicide resistance; Best management practices; Disease severity; Golf greens; Preventive control; QOI fungicides; Disease susceptibility; Colletotrichum graminicola; Disease identification; Chemical control; Benzimidazoles; DMI fungicides; Nitrogen fertilization; Plant growth regulators; Vertical mowing; Rolling; Mowing height; Topdressing program; Irrigation practices
Abstract/Contents:"Scientists within the NE-1025 multi-state turf research project are studying the biology, ecology, and management of anthracnose (caused by Colletotrichum cereale) of annual bluegrass turf. They are examining the biology of the pathogen, assessing fungicidal control and fungicide resistance development, evaluating the effect of cultural practices on anthracnose severity, and developing annual bluegrass and bentgrass selections for resistance to this disease. The papers points include: The frequency and severity of anthracnose epiphytotics on golf course putting greens has increased over the past decade and is thought to be associated with some of the management practices used by superintendents to improve playability (ball roll). Besides annual bluegrass, outbreaks are also increasingly common on creeping bentgrass (Agrostis stolonifera) and may develop on other cool-season turf species including ryegrasses (Lolium spp.), fescues (Festuca spp.), Kentucky bluegrass (P. pratensis), and velvet bentgrass (A. canina). It is recommended that golf course superintendents initiate a preventive fungicide program at least one month prior to the normal onset of anthracnose in their area. Of the eight chemistries available for anthracnose control, only the benzimidazole, DMI (demethylation inhibitors), and QoI (strobilurins)classes have significant curative activity. Resistance has developed in anthracnose to site-specific fungicide classes including the QoIs, benzimidazoles, and DMI fungicides. Best management practices for the control of anthracnose disease on annual bluegrass putting green turf include implementing a frequent low N-rate fertility program initiated in late spring and continuing through summer."
See Also:Other Reports from this USGA research project: 2008-10-380
Note:Reprint appears in Golf Course Management 76(8) August 2008, p. 93-104
Partial reprint appears in Australian Turfgrass Management Journal 10(6) November/December 2008, p. 44-46, 48-50
Reprint appears in Green is Beautiful Winter 2010, p. 22-33
Partial reprint appears in The Dogwood Fall 2009, p. 40-48
Summary as abstract
Pictures, color
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Murphy, J., F. Wong, L. Tredway, J. A. Crouch, J. Inguagiato, B. Clarke, et al. 2008. Best management practices for anthracnose on annual bluegrass turf. USGA Turfgrass Environ. Res. Online. 7(16):p. [1-16].
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    Last checked: 08/13/2008
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