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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2000.90.6.S1#page=59
Last checked: 10/16/2015
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): | Peng, G.;
Gleason, M. L.;
Nutter, F. W. |
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| Author Affiliation: | Department of Plant Pathology, Iowa State University, Ames, IA |
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| Title: | Comparison of two strategies for delaying fungicide resistance in populations of Pythium aphanidermatum |
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| Section: | Abstracts submitted for presentation at the 2000 APS annual meeting
Other records with the "Abstracts submitted for presentation at the 2000 APS annual meeting" Section
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| Meeting Info.: | APS Annual Meeting, New Orleans, LA, August 12-16, 2000 |
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| Source: | Phytopathology. Vol. 90, No. 6, June 2000, p. S59-S60. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Fungicide resistance; Pythium aphanidermatum; Tank mix; Mode of action; Fungicides; Lolium perenne; Metalaxyl-M; Propamocarb; Fungicide evaluation; Fungicide rotation
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| Trade Names: | Mefanoxam |
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| Abstract/Contents: | "Pythium blight caused by Pythium aphanidermatum is one of destructive diseases on turfgrass. Resistance to fungicide has compromised effective management with some fungicides. Alternating or tank mixing fungicides with different modes of action are two strategies for delaying proliferation of resistance. Two populations of P. aphanidermatum with known proportions of isolates resistant to mefenoxam were constructed artificially. Perennial ryegrass was grown in 15-centimeter pots for several cycles of incubation followed by fungicide treatments. Mefenoxam and Banol were alternated at full rate, or applied at each cycle as a half-rate mixture. Changes in the proportion of resistant isolates after each cycle were quantified by grinding symptomatic grass tissue, dilution plating and counting the number of propagules/ml on agar media with or without mefenoxam. The alternation led to a rapid proliferation of resistance. In contrast, the proliferation was slowed by use of half-rate mixture. Tank mixing may be a better control strategy than alternating in presence of resistant isolates." |
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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):
Peng, G., M. L. Gleason, and F. W. Nutter. 2000. Comparison of two strategies for delaying fungicide resistance in populations of Pythium aphanidermatum. Phytopathology. 90(6):p. S59-S60. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2000.90.6.S1#page=59
Last checked: 10/16/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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