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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Watkins, J. E.;
Wit, L. A. |
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| Author Affiliation: | Department of Plant Pathology; Department of Horticulture, University of Nebraska, Lincoln, NE 68583-0722 |
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| Title: | Effect of fungicides and application interval on brown patch development, 1993 |
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| Source: | Fungicide and Nematicide Tests. Vol. 49, 1994, p. 362. |
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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; Brown patch; Rhizoctonia solani; Disease control; Fungicide evaluation; Fungicides; Application frequency
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| Cultivar Names: | Manhattan |
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| Abstract/Contents: | "Plots were located on a Manhattan ryegrass turf established Sep 1985 at the University of Nebraska John Seaton Anderson turfgrass research facility, Mead NE. The experimental area was inoculated late May with R. solani cultured on sterilized oat seed at the rate of 10 lb oat inoculum per 1000 sq ft. The inoculum was applied with a 4-ft Gandy drop spreader. Preemergent weed control was 1 1/2 qt Dimension per acre applied early Apr. Plots were fertilized with 1 lb actual N per 1000 sq ft on 1 May, 16 Jun and 2 Jul. Irrigation was applied nightly to 1.5 in per week during the growing season. Fungicide applications were initiated 30 Jun and repeated at one, two, or three week intervals until 12 Aug. Products were applied with a CO2-pressurized (25 psi) backpack sprayer with a flat fan nozzle calibrated to deliver 5 gal spray sonlution per 1000 sq ft. Plot size was 25 sq ft. Each treatment was replicated four times in a randomized complete block design. Precipitation was above normal from Apr through Sep. Temperatures were generally lower than normal with intermittent period of hot, humid weather. Brown patch developed slowly during the growing season and was moderately severe by early Aug. By mid-Jul most fungicide treatments were showing significantly less brown patch than the untreated control. The overall best treatment was Aliette 80WG + Fore 80 WP. The difference between EXPO 1945B applied at 4.5 and 9 oz were not significant. The experimental product ASC 67098X applied four times at 3 fl oz was similar in performance to Fluazinam and performed better than ASC 679098Z applied twice at 6 fl oz. No phytotoxicity was observed for any of the treatments." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract, with table, only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watkins, J. E., and L. A. Wit. 1994. Effect of fungicides and application interval on brown patch development, 1993. Fungicide Nematicide Tests. 49:p. 362. |
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MSU catalog number: SB 951.3 .F82 |
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