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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2006/T041.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Uddin, W.;
Soika, M. D.;
Soika, E. L. |
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| Author Affiliation: | Department of Plant Pathology, The Pennsylvania State University, University Park, Pennsylvania |
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| Title: | Evaluation of fungicides for control of Pythium foliar blight on perennial ryegrass, 2005 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | F&N Tests. Vol. 61, 2006, p. T041. |
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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: Lolium perenne; Pythium aphanidermatum; Fungicide trials; Disease control; Application rates; Disease severity
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| Cultivar Names: | Legacy II |
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| Abstract/Contents: | "The study was conducted at the Valentine Turfgrass Research Center, University Park, PA, on perennial ryegrass maintained under golf course fairway management conditions, and mowed three times per week at 1.0-in. cutting height. The soil was Hagerstown silt loam with pH 6.8. The experimental area was fertilized 9 and 10 May with 1.0 lb nitrogen (29-5-10 and 31-0-0 respectively) per 1000 sq ft, and 6 and 15 Jun with 0.5 lb nitrogen (9-18-17 and 18-9-18 respectively) per 1000 sq ft. Treatment plots, 3 ft x 3.5 ft, were arranged in a randomized complete block design with three replications. Treatments were applied 23 Jun and 5 Jul with a CO2-powered sprayer using a TeeJet 11008E nozzle. Applications were made at 40 psi, in water equivalent to 2 gal per 1000 sq ft. On 6 Jul the experiment was enclosed in a 30 ft x 48 ft polyethylene greenhouse to reduce radiational cooling. The experiment was inoculated 7 Jul with a mycelial suspension of a five-isolate pool of Pythium aphanidermatum. An internal intermittent misting system provided high relative humidity and leaf surface wetness during the course of the study. The greenhouse was vented during daylight hours to maintain a temperature range of 85° to 95°F. Vents were closed during the evenings and nights. Test plots were not mowed between the time of treatment applications on 5 Jul and disease assessments. Disease severity was assessed 14 and 15 Jul. Data were subjected to analysis of variance and multiple comparisons of the mean values were made using the Waller-Duncan k-ratio test (k=100). Pythium blight severity was very high in the experiment. On 15 Jul, 14 treatments provided disease control that was significantly different from the untreated check. Excellent control of Pythium foliar blight was achieved from the two Heritage + Subdue MAXX mixtures, the Cyazofamid combinations with Alude or Insignia, the two formulations of Subdue applied alone, the low and high rates of Cyazofamid, and the Insignia + Signature mixture. No phytotoxicity was observed in the experiment." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Uddin, W., M. D. Soika, and E. L. Soika. 2006. Evaluation of fungicides for control of Pythium foliar blight on perennial ryegrass, 2005. F&N Tests. 61:p. T041. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2006/T041.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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MSU catalog number: SB 951.3 .F82 |
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