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| Publication Type:
| Report |
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| Author(s): | Soika, M. D.;
Goff, M. |
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| Author Affiliation: | Department of Plant Pathology, The Pennsylvania State University, University Park, PA |
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| Title: | Evaluation of fungicides for control of dollar spot, 1997 |
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| Source: | Fungicide and Nematicide Tests. Vol. 53, 1998, p. 446. |
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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; Sclerotinia homoeocarpa; Disease control; Fungicides; Golf greens; Mancozeb; Application rates; Chlorflurenol-methyl; Tank mix; Experimental products; Triadimefon; Azoxystrobin; Penconazole; Chlorothalonil; Myclobutanil; Iprodione; Propiconazole; Fosetyl Al
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| Abstract/Contents: | "Evaluation of fungicides for control of dollar spot, 1997: This evaluation was conducted at the Valentine Turfgrass Research Center, University Park, PA, on creeping bentgrass maintianed under golf course greens management conditions, at 0.16 inch cutting height. The soil was modified sandy clay loam with a soil pH of 7.0. The test area was fertilized on 19 May with 1.0 lb nitrogen (Scotts 19-0-17) per 1000 sq ft and on 10 Jun with 0.5 lb nitrogen (Lebanon 28-7-14) per 1000 sq ft. Individual plots, 3 ft x 11 ft, were arranged in a randomized complete block design with three replications. Treatments were applied with a CO₂-powered boom sprayer, using TeeJet 8004 nozzles, at 40 psi, in water equivalent to 2 gal per 1000 sq ft. Applications were made on 11 and 25 Jun, and 10 and 22 Jul, except as noted in the table. The experimental area was inoculated on 18 Jun, seven days after the first treatment application, by hand-scattering S. homoeocarpaa-infested rye grain, at a density of 20-30 grains per sq ft, over the entire test area. Five isolates were used in that inoculation. Dollar spot was evaluated on 2, 9, 21, Jul and 5 Aug. Data were subjected to analysis of variance and Duncan's New MRT, P=0.05. Data from 21 Jul and 5 Aug are presented. Dollar spot disease pressure became severe and was severe and was uniformly distributed throughout the experimental area during the growing season. The adjuvant Break-thru rendered no significant difference in dollar spot suppression provided by the fungicide Fore. Of the 31 treatments, 26 were providing excellent control of dollar spot on both the 21 Jul and 5 Aug rating dates." |
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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):
Soika, M. D., and M. Goff. 1998. Evaluation of fungicides for control of dollar spot, 1997. Fungicide Nematicide Tests. 53:p. 446. |
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