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Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2005.95.6.S168#page=2 Last checked: 10/20/2015 Requires: PDF REader Notes: Item is within a single large file |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Kaminski, J. E.;
Dernoeden, P. H. |
Author Affiliation: | Department of Natural Resource Sciences and Landscape Architecture, University of Maryland, College Park, Maryland |
Title: | Incidence and severity of dead spot, pseudothecia development, and overwintering of Ophioshaerella agrostis in creeping bentgrass |
Section: | Abstracts of Presentations at the 2004 Northeastern Division Meeting Other records with the "Abstracts of Presentations at the 2004 Northeastern Division Meeting" Section
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Source: | Phytopathology. Vol. 95, No. 6, June Supplement 2005, p. S169-S170. |
Publishing Information: | St. Paul, MN: American Phytopathological Society |
# of Pages: | 2 |
Keywords: | TIC Keywords: Ophiosphaerella agrostis; Agrostis stolonifera; Disease severity; Pseudothecia; Disease profile
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Abstract/Contents: | "Dead spot (Ophioshaerella agrostis) is a relatively new disease of creeping bentgrass (Agrostis stolonifera). The objectives of this research were to determine the peak period of dead spot activity and the ability of O. agrostis to overwinter. Patch diameter of O. agrostis infection centers generally increased at a linear rate between mid-June and early August. Pseudothecia production closely followed increasing patch diameter. Pseudothecia could be found as early as the first day of the symptom expression and as many as 478 pseudothecia were found in a single dead spot. Although new infection centers appeared between late-August and early-October, increases in patch diameter and pseudothecia development were negligible during this period. Dead spot was most severe after the initial green construction or after fumigation with methyl bromide. O. agrostis was capable of overwintering as pseudothecia or as hyphae within or on various bentgrass tissues, especially nodes of stolons. Despite winter survival of the pathogen, disease severity declined dramatically in the second year." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Kaminski, J. E., and P. H. Dernoeden. 2005. Incidence and severity of dead spot, pseudothecia development, and overwintering of Ophioshaerella agrostis in creeping bentgrass. Phytopathology. 95(6):p. S169-S170. |
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| Web URL(s): http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2005.95.6.S168#page=2 Last checked: 10/20/2015 Requires: PDF REader Notes: Item is within a single large file |
| MSU catalog number: SB 599 .P48 |
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