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| Publication Type:
| Report |
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| Author(s): | Watkins, J. E.;
Wit, L. A. |
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| Author Affiliation: | Watkins: Department of Plant Pathology, and Wit: Department of Horticulture, University of Nebraska, Lincoln, NE |
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| Title: | Evaluation of fungicides for control of dollar spot, 1998 |
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| Source: | Fungicide and Nematicide Tests. Vol. 54, 1999, p. 508. |
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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: Agrostis stolonifera; Dollar spot; Sclerotinia homoeocarpa; Disease control; Fungicide evaluation; Application rates; Application frequency; Disease severity; Quality; Tank mix
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| Cultivar Names: | Penncross |
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| Abstract/Contents: | "Plots were located on a Penncross creeping bentgrass turf at the John Seaton Anderson Turf and Ornamental Research Facility at the University of Nebraska Agricultural Research and Development Center near Mead, NE. The experimental area was inoculated in early Jun with Sclerotinia homoeocarpa cultured on sterilized tall fescue seed. The inoculum was applied with a 4-ft wide Gandy drop spreader calibrated to deliver 1.5 lb tall fescue inoculum per 1000 sq ft. Plots were mowed three times per week at a height of 0.62 in and maintained at 80% ETp. The plot area was treated with Heritage at 0.4 oz/1000 sq ft on 9 Jul to prevent brown patch. Fungicide treatments were applied to 25 sq ft plots using a CO₂ pressurized (30 psi) backpack sprayer with a T-jet 8002 flat fan nozzle. The sprayer was calibrated to deliver 5 gal spray solution per 1000 sq ft. Four replications per treatment were arranged in a randomized complete block design. Precipitation was above normal during May and Jun and below normal Jul and Aug. Temperatures and humidities were near normal May and Jun and above normal Jul and Aug. Disease development on the plots was severe. There were significant differences among fungicide treatments and turfgrass quality was negatively correlated with disease. The treatments ProStar 1.5 oz plus Banner MAXX, 0.5 fl oz; Banner MAXX, 1 fl oz; Lynx, 0.28 oz; Eagle, 0.8 oz and Lynx, 0.28 oz plus Daconil Ultrex, 1.8 oz provided the best dollar spot control with the lowest disease severity and highest quality ratings." |
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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):
Watkins, J. E., and L. A. Wit. 1999. Evaluation of fungicides for control of dollar spot, 1998. Fungicide Nematicide Tests. 54:p. 508. |
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MSU catalog number: SB 951.3 .F82 |
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