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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=28
Last checked: 11/22/2010
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Cutulle, M. A.;
Horvath, B. J.;
Derr, J.;
Nichols, A.;
McCall, D. |
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| Author Affiliation: | Cutulle: Virginia Tech, Ellicott City, MD; Horvath: University of Tennessee, Knoxville, TN; Derr and Nichols: Virginia Tech, Virginia Beach, VA; McCall: Virginia Tech, Blacksburg, VA |
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| Title: | Impact of bispyribac-sodium on annual bluegrass control and brown patch severity in tall fescue |
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| Section: | 2010 APS Annual Meeting abstracts of presentations
Other records with the "2010 APS Annual Meeting abstracts of presentations" Section
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| Source: | Phytopathology. Vol. 100, No. 65, June supplement 2010, p. S28. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Bispyribac-sodium; Cultivar susceptibility; Festuca arundinacea; Herbicide application; Poa annua control; Postemergence herbicides; Rhizoctonia blight
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| Abstract/Contents: | "Tall Fescue is one of the most commonly utilized turfgrasses for home lawns and other lower maintenance turf areas in the United States. Rhizoctonia infects tall fescue stands during hot humid conditions when tall fescue is under summer stress. The subsequent disease, brown patch is aesthetically unpleasing and can thin out the turfgrass stand leading to the germination and encroachment of winter annual weeds such as annual bluegrass. A potential postemergence herbicide for control of annual bluegrass in tall fescue is bispyribac-sodium. However, preliminary reports indicate that applications of bispyribac-sodium on tall fescue have increased its susceptibility to brown patch, thus promoting the sequential increase of summer disease and fall weed encroachment. Bispyrabac-sodium was applied at rates of 12 and 6 g ai ha-1 either April 22 and two weeks after or May 22 and two weeks after in 2009. Applying the low rate of bispyribac-sodium on May 22 resulted in greater than 60% brown patch in June, which was more than any other treatment. More brown patch lesions were also recorded for later applications of the high herbicide rate when compared to other treatment combinations. Overall, later herbicide applications increased disease severity in July and August regardless of herbicide rate. Early applications of the high herbicide rate resulted in less annual bluegrass cover when compared to all other treatment combinations with no objectionable phytotoxicity to tall fescue." |
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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):
Cutulle, M. A., B. J. Horvath, J. Derr, A. Nichols, and D. McCall. 2010. Impact of bispyribac-sodium on annual bluegrass control and brown patch severity in tall fescue. Phytopathology. 100(65):p. S28. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=28
Last checked: 11/22/2010
Requires: PDF Reader |
| 
MSU catalog number: b2219736a |
| Find from within TIC:
Digitally in TIC by file name: phytp2010junpres |
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