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| Publication Type:
| Report |
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| Author(s): | Hartman, J. R.;
Clinton, W.;
Powell, A. J. |
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| Author Affiliation: | Departments of Plant Pathology and Agronomy, University of Kentucky |
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| Title: | Evaluation of Fungicides for Prevention of Dollar Spot and Brown Patch of Creeping Bentgrass, 1987 |
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| Source: | Fungicide and Nematicide Tests. Vol. 43, 1988, p. 256. |
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| Publishing Information: | St. Paul: American Phytopathological Society |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Dollar spot; Lanzia; Brown patch; Moellerodiscus; Rhizoctonia solani; Fungicides; Agrostis
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| Abstract/Contents: | "Fungicide treatments were evaluated for dollar spot and brown patch prevention on a creeping bentgrass green, located at the University of Kentucky Spindletop Research Farm near Lexington. The turf was maintained at a 0.25 in. mowing height, received minimal nitrogen fertilization, and otherwise received conventional maintenance. Each treatment was replicated four times in a randomized complete block design with 5 ft x 6 ft plots. Treatments were applied using a hand-pumped Solo packpack sprayer with a 6 ft, four nozzle boom delivering 2 gal/1000 feet square and operating as 25 psi. All materials were first applied on 26 May and treatments were made biweekly except where weekly or triweekly treatments are indicated. Applications were made on 2, 9, 16, and 23 Jun according to the designated spray interval. Plots were evaluated 26 Jun by counting the number of dollar spot infection centers/plot, and by estimating the percent area of each plot infected with brown patch. A table relating the rates of infection of brown patch and dollar spot to the treatments and rates of various fungicides is included. A few dollar spot infections were present at the start of the test, and disease pressure was moderate by late Jun. Brown patch became evident about a week before disease ratings were made. Six treatments, Banner 1.1E, Chipco 26019 2F, Daconil 500F alone and in combination with SDS 66533, FBC 39865, and SN 596 were more effective in controlling dollar spot than were the other chemicals tested. The fungicides were not phytotoxic, but Lesco R09524 caused the grass to turn a dull geen. Brown patch occurrence was variable as seen by the different values recorded for untreated plots." |
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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):
Hartman, J. R., W. Clinton, and A. J. Powell. 1988. Evaluation of Fungicides for Prevention of Dollar Spot and Brown Patch of Creeping Bentgrass, 1987. Fungicide Nematicide Tests. 43:p. 256. |
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