Full TGIF Record # 92238
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Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2002.92.6.S1#page=34
    Last checked: 10/16/2015
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Harmon, P. F.; Latin, R.
Author Affiliation:Department of Botany and Plant Pathology, Purdue University, West Lafayette, Indiana
Title:Influence of primary inoculum on epidemics of gray leaf spot on perennial ryegrass
Section:2002 APS annual meeting abstracts on presentations
Other records with the "2002 APS annual meeting abstracts on presentations" Section
Meeting Info.:APS Annual Meeting, July 27-31, 2002, Milwaukee, WI
Source:Phytopathology. Vol. 92, No. 6, June 2002, p. S34.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Inoculum; Epidemics; Gray leaf spot; Lolium perenne; Winter; Disease severity; Pyricularia grisea; Disease development; Conidia
Abstract/Contents:"Winter survival of Magnaporthe grisea (anamorph = Pyricularia grisea), has a large effect on primary inoculum, which in turn affects disease development during the summer. This investigation examines gray leaf spot epidemics in 2000 and 2001 at the Purdue Turf Research Center in West Lafayette, IN. Epidemic severity was assessed by counting airborne conidia collected over a four-month period with a volumetric air sampling device. The 2000 epidemic was initiated with infested residue on July 1, 2000. The 2001 epidemic was allowed to develop from inoculum surviving the winter. In both years conidia were detected in early July, however the 2000 epidemic was more severe. Despite the difference in severity, environmental conditions appeared equally favorable for disease development during both years. Efforts to recover the pathogen from infested residue during the winter and spring months of 2001 showed poor pathogen survival. It is likely that differences in primary inoculum levels contributed to differences in the disease epidemics."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Harmon, P. F., and R. Latin. 2002. Influence of primary inoculum on epidemics of gray leaf spot on perennial ryegrass. Phytopathology. 92(6):p. S34.
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Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2002.92.6.S1#page=34
    Last checked: 10/16/2015
    Requires: PDF Reader
    Notes: Item is within a single large file
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