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Publication Type:
| Report |
Author(s): | Sanders, P. L.;
Soika, M. D. |
Author Affiliation: | Department of Plant Pathology, Pennsylvania State University |
Title: | Evaluation of Fungicides for Control of Dollar Spot and Brown Patch, 1987 |
Source: | Fungicide and Nematicide Tests. Vol. 43, 1988, p. 263-264. |
Publishing Information: | St. Paul: American Phytopathological Society |
Keywords: | TIC Keywords: Agrostis stolonifera; Agrostis; Dollar spot; Sclerotinia homoeocarpa; Brown patch; Rhizoctonia solani; Fungicides
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Abstract/Contents: | "Fungicides were evaluated at the Valentine Turfgrass Research Center, University Park, PA, on creeping bentgrass maintained under golf course green management conditions at 0.25 inch cutting height. Fertilizer (NH4SO4) was applied on Jun 4 at the rate of 3.0 lbs per 1000 sq ft. Individual plots, 25 ft x 3 ft, were arranged in a randomized complete block design with 3 replications. The experimental area was inoculated on Jun 12 by hand-scattering S. homoeocarpa-infected rye grain over the entire test area. Fungicides were applied with a CO2-powered boom sprayer, using T-jet 8004 nozzles, at 30 psi, in water equivalent to 1.75 gal per 1000 sq ft. Fungicide applications were made on Jun 15, and Jul 2, 15, and 29, except at noted in the table. Dollar spot was visually evaluated on Jun 30, Jul 13, 28, and Aug 11. On Aug 11, brown patch was noted in the test area, and disease incidence was evaluated on Aug 12. Data obtained were subjected to analysis of variance and Waller-Duncan K-ratio t test. Dollar spot data from Aug 11 and brown patch data from Aug 12 are presented. Over half of the fungicides and fungicide combinations tested provided complete suppression of dollar spot and brown patch. Areas treated with PP 523 showed dark-green to bronze foliar discoloration; those treated with SDS 66534 showed yellowing and foliar necrosis." |
Language: | English |
References: | 0 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Sanders, P. L., and M. D. Soika. 1988. Evaluation of Fungicides for Control of Dollar Spot and Brown Patch, 1987. Fungicide Nematicide Tests. 43:p. 263-264. |
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