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| DOI: | 10.1094/PHYTO-102-1-S1.1 |
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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-102-1-S1.1#page=3
Last checked: 04/25/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Hempfling, J. W.;
Murphy, J. A.;
Clarke, B. B. |
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| Author Affiliation: | Rutgers, The State University of New Jersey, New Brunswick, NJ |
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| Title: | The effect of mechanical injury on anthracnose severity of annual bluegrass turf |
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| Section: | 2011 Northeastern Division meeting abstracts
Other records with the "2011 Northeastern Division meeting abstracts" Section
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| Meeting Info.: | New Brunswick, New Jersey: October 12-14, 2011 |
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| Source: | Phytopathology. Vol. 102, No. 1, Supplement 1 2012, p. S1.3. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Anthracnose; Chlorothalonil; Colletotrichum graminicola; Cultivar evaluation; Cultural methods; Disease evaluation; Injuries; Poa annua; Vertical mowing; Injuries
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| Abstract/Contents: | "Wounding through mechanical injury has been reputed to enhance anthracnose (caused by the fungus Colletotrichum cereale Manns) of annual bluegrass [ABG; Poa annua L. f. reptans (Hausskn) T. Koyama] turf. However, research on the effect of wounding, particularly from verti-cutting, on anthracnose severity is limited. Two field studies were initiated in North Brunswick, NJ to examine the effect of scarification (SC) and verti-cutting (VC) on anthracnose severity of ABG turf maintained at 3.2 mm. Trial one was conducted once in 2010 and twice in 2011 to evaluate the effect of SC depth (1.3 and 7.6 mm) on anthracnose severity. Plots (0.5 by 1.5 m) were arranged in a CRD with ten replications. Three 25 cm transects were established directly over SC lines of treated plots and randomly positioned in non-scarified plots after treatments were applied (23 July 2010, 6 July 2011 and 3 Aug 2011). Disease observations were made every 2.5 cm along transects within each plot immediately af ter SC and every 1 to 5 d thereafter. Scarified plots had slightly greater disease (3%) than the control on only one of 32 observation dates in 2010 and 2011. To date, findings do not support the hypothesis that wounding from scarification increases anthracnose severity. Trial two was initiated in Aug 2011 to determine whether an apparent intensification in disease severity observed after plots were VC in previous trials was an artifact of defoliation, exposing previously hidden (underlying) diseased tissue, or an actual increase in disease. This trial used a 2 x 4 factorial in a RCB with 6 replications; VC (none or 3.8 mm) applied over 4 fungicide (chlorothalonil) programs (none, preventative throughout, preventative until VC, and curative after VC). Visual ratings and digital images were used to assess disease development; preliminary data analysis is underway." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hempfling, J. W., J. A. Murphy, and B. B. Clarke. 2012. The effect of mechanical injury on anthracnose severity of annual bluegrass turf. Phytopathology. 102(1):p. S1.3. |
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| DOI: 10.1094/PHYTO-102-1-S1.1 |
| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-102-1-S1.1#page=3
Last checked: 04/25/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2219736a |
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Digitally in TIC by file name: phytp2012jannortheasterndiv |
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