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| Publication Type:
| Report |
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| Author(s): | Soika, M. D.;
Sanders, P. L. |
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| Author Affiliation: | Department of Plant Pathology, The Pennsylvania State University, University Park, PA 16802 |
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| Title: | Control of pythium foliar blight with fungicide treatments, 1994 |
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| Section: | Turf Grass Reports
Other records with the "Turf Grass Reports" Section
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| Source: | Fungicide and Nematicide Tests. Vol. 50, 1995, p. 378. |
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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; Foliar diseases; Pythium aphanidermatum; Disease control; Fungicide evaluation
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| Cultivar Names: | Pennfine |
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| Abstract/Contents: | "This study was conducted at the Valentine Turfgrass Research Center, University Park, PA, on perennial ryegrass, maintained under golf course fairway management conditions. The experimental area was fertilized on 9 May and 3 Jun with 1 lb nitrogen per 1000 sq ft (Scotts 33-3-6) and 30 Jun with 1 lb nitrogen per 1000 sq ft (urea 46-0-0). Daconil 2787 at 6 fl oz per 1000 sq ft and Lesco Benomyl at 2 oz per 1000 sq ft were applied on 15 and 30 Jun, respectively, to control brown patch in the experimental area. Individual treatment plots, 3 ft x 15 ft, were arranged in a randomized complete block design with three replications. Treatments were applied on 5 Jul with a CO²-powered boom sprayer using TeeJet 8004 nozzles, at 35 psi, in water equivalent to 2 gal per 1000 sq ft. Three days after fungicide application (8 Jul), a 3 ft-wide inoculated strip was covered with PVC pipe-framed, translucent plastic-covered humidity chambers to increase relative humidity and minimize radiational cooling at night. Humidity chambers were equipped with intermittent mist to maintain a saturated atmosphere. Chambers were vented and a 3-minute mist was applied every 20 minutes during daylight hours. At night, chambers were closed and no mist was applied. After 7 days incubation (15 Jul), the chambers were removed and the inoculated areas were visually rated (10 days after treatment). A second sequential inoculation was made on 15 Jul in the manner described above. Chambers were removed and this inoculation was rated at 16 days after treatment (21 Jul). Data were subjected to analysis of variance and Duncan's Multiple Range test. Intense disease pressure is provided by the conditions under which this experiment is performed. At 10 days after fungicide application, Pace and the methoxyacrylate fungicide, ICIA5504, provided excellent suppression of Pythium blight. By 16 days after fungicide application, disease suppression provided by ICIA5504 was not significantly different from the check. At this time, the best control was provided by Pace and Aliette, alone or in combination with Fore. It would appear from these data that the addition of Fore to Aliette does not increase Pythium blight control over that obtained with Aliette alone." Data is given in table form including treatment, formulation and rate per 1000 sq ft, and mean disease severity. |
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| Language: | English |
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| References: | 0 |
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| Note: | Report #368
Table |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Soika, M. D., and P. L. Sanders. 1995. Control of pythium foliar blight with fungicide treatments, 1994. Fungicide Nematicide Tests. 50:p. 378. |
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