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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2006.96.6.S1#page=82
Last checked: 10/20/2015
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): | Murray, T. D.;
Johnston, W. J.;
Sheng, H. |
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| Author Affiliation: | Murray and Sheng: Department of Plant Pathology; Johnston: Department of Crop and Soil Sciences, Washington State University, Pullman, Washington |
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| Title: | Variation in sensitivity to pentachloronitrobenzene of Typhula spp. causing snow mold on turfgrass and wheat |
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| 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
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| Source: | Phytopathology. Vol. 96, No. 6, June Supplement 2006, p. S82. |
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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: Quintozene; Typhula incarnata; Typhula ishikariensis; Typhula phacorrhiza; Disease development; Agrostis; Poa; Disease control
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| Abstract/Contents: | "Snow molds damage turfgrass and wheat in areas where snow cover persists for 65 days or more. Fungicides containing pentachloronitrobenzene (PCNB) are applied to turfgrass prior to snow fall to control snow mold. In 2004, sclerotia of Typhula incarnata (TI), T. ishikariensis (TISH), and T. phacorrhiza (TP) were collected from Agrostis and Poa on a golf course at McCall, ID where severe snow mold developed after PCNB application. Sclerotia of TI and TISH were also collected from wheat with snow mold near Mansfield, WA in a field never treated with PCNB. Pure cultures were established on potato dextrose agar (PDA), transferred to PDA containing 0 to 60 μg/ml PCNB (dissolved in ethanol and added to molten agar), and incubated at 10°C for 14 days. Inhibition was determined by comparing colony diameter at each concentration with the 0 PCNB control and the concentration that inhibited growth by 50% (ED50) was calculated by linear regression. ED50 for TI from turf and wheat ranged from 4.3 to 24.0 and 9.8 to 11.2 μg/ml, respectively; for TISH from turf and wheat ED50 ranged from 3.1 to 7.8 and 0.3 to 57.5 μg/ml, respectively; and for TP ED50 ranged from 5.6 to >60 μg/ml. Although some isolates grew at a high concentration of PCNB, variation in ED50 among isolates from turf and wheat suggests that failure to control snow mold after PCNB application was not due to resistance." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: P C N B - Quintozene |
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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):
Murray, T. D., W. J. Johnston, and H. Sheng. 2006. Variation in sensitivity to pentachloronitrobenzene of Typhula spp. causing snow mold on turfgrass and wheat. Phytopathology. 96(6):p. S82. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2006.96.6.S1#page=82
Last checked: 10/20/2015
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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