Full TGIF Record # 112277
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Web URL(s):http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2006.96.6.S1#page=60
    Last checked: 10/20/2015
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Kerns, J. P.; Tredway, L. P.
Author Affiliation:Plant Pathology, North Carolina State University
Title:Determining the basis of pyraclostrobin activity against Pythium root dysfunction
Section:APS abstracts submitted for presentation at the 2006 APS Annual Meeting
Other records with the "APS abstracts submitted for presentation at the 2006 APS Annual Meeting" Section
Source:Phytopathology. Vol. 96, No. 6, June Supplement 2006, p. S60.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Pyraclostrobin; Pythium volutum; Agrostis stolonifera; Disease control; Application rates; Comparisons; Shoot growth; Nitrogen; Growth rate; Azoxystrobin; Metalaxyl-M; Fungicide evaluation; Chemical sensitivity
Trade Names:Mefanoxam
Abstract/Contents:"Pyraclostrobin has shown good to excellent control of Pythium root dysfunction of creeping bentgrass caused by Pythium volutum. Experiments were conducted to determine if disease suppression was due to fungicidal effects or physiological effects on the host. Sensitivity in culture was examined using twelve isolates of P. volutum, five isolates of P. torulosum, and one isolate of P. aphanidermatum. Isolates were plated on five concentrations of pyraclostrobin, azoxystrobin, and mefanoxam. Average EC50 values for three P. volutum isolates were 0.012, 0.30, and 0.46 mg kg-1 for pyraclostrobin, azoxystrobin, and mefanoxam respectively. Growth chamber studies were conducted to determine if pyraclostrobin influences foliar growth of creeping bentgrass. Treatments consisted of four nitrogen levels and seven pyraclostrobin rates. Pyraclostrobin applications did not significantly increase creeping bentgrass growth rate. All isolates of P. volutum, except for one, were sensitive to all three fungicides tested, but considerable variation among isolates was detected. Variation in fungicide sensitivity among P. volutum isolates may explain differences in fungicide efficacy across locations."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kerns, J. P., and L. P. Tredway. 2006. Determining the basis of pyraclostrobin activity against Pythium root dysfunction. Phytopathology. 96(6):p. S60.
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http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2006.96.6.S1#page=60
    Last checked: 10/20/2015
    Requires: PDF Reader
    Notes: Item is within a single large file
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