| |
| DOI: | 10.1094/PHYTO.2004.94.6.S156 |
|---|
| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2004.94.6.S156#page=4
Last checked: 06/15/2009
Requires: PDF Reader
Notes: Item is within a single large file |
|---|
| Publication Type:
| Report |
|---|
| Content Type: | Abstract or Summary only |
|---|
| Author(s): | Horvath, B. J.;
Vargas, J. M. |
|---|
| Author Affiliation: | Department of Plant Pathology, Michigan State University, East Lansing, Michigan |
|---|
| Title: | Spatial structuring of dollar spot epidemics |
|---|
| Section: | 2003 North Central Division meeting abstracts
Other records with the "2003 North Central Division meeting abstracts" Section
|
|---|
| Meeting Info.: | East Lansing, Michigan : June 25-27, 2003 |
|---|
| Source: | Phytopathology. Vol. 94, No. 6S, June Supplement 2004, p. S159. |
|---|
| Publishing Information: | St. Paul, MN: American Phytopathological Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Disease profile; Dollar spot; Epidemiology; Sclerotinia homoeocarpa
|
|---|
| Abstract/Contents: | "Dollar spot is a severe turfgrass pathogen caused by the pathogen Sclerotinia homoeocarpa F.T. Bennett. This fungus is not known to produce sexual or asexual spores, and therefore, its primary mode of transport is via infected grass clippings on equipment and humans. A basic understanding of the epidemiology of this pathogen is needed. The objective for this project was to quantify the spatial structure of dollar spot incidence and determine its temporal stability. The study area was established on a mixed sward of creeping bentgrass and annual bluegrass in E. Lansing, MI. Dollar spot foci were counted at 223 locations within the study area. Variograms of disease incidence were constructed for each date and showed clear spatial structuring at relatively small scales (~0-10 m). Closer examination of the variogram model parameters showed that the nugget and sill parameters were proportional to each other, and that the range parameter remained fairly constant within each season. Between 50 and 60 percent of the total population variance in each year was spatially structured. This indicates that the spatial structure of dollar spot remains relatively unchanged regardless of disease severity, suggesting that the factor primarily responsible for the spatial pattern is one that does not move about in space." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | This item is an abstract only! |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Horvath, B. J., and J. M. Vargas. 2004. Spatial structuring of dollar spot epidemics. Phytopathology. 94(6S):p. S159. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=149318 |
| If there are problems with this record, send us feedback about record 149318. |
| Choices for finding the above item: |
|---|
| DOI: 10.1094/PHYTO.2004.94.6.S156 |
| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2004.94.6.S156#page=4
Last checked: 06/15/2009
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2219736a |
| Find from within TIC:
Digitally in TIC by file name: phytp2004junnorthcentraldiv |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
