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| Publication Type:
| Report |
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| Author(s): | Fowler, M. Craven;
Smiley, R. W.;
Dudonnes, J. W.;
Stark, W. |
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| Author Affiliation: | Cornell University,50 Petrova Ave.,Saranac Lake, Cortland Country Club, Respectively |
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| Title: | Control of Winter Diseases, 1985. |
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| Source: | Fungicide and Nematicide Tests. Vol. 41, 1986, p. 159. |
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| Publishing Information: | St. Paul: American Phytopathological Society |
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| Keywords: | TIC Keywords: Typhula blight; Microdochium patch; Fungicides
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| Abstract/Contents: | "Fungicides were evaluated for their ability to prevent winter diseases at two sites. Applications were made to bentgrass + annual bluegrass putting green at the Lake Placid Club Resort, Lake Placid, NY on 25 Sep 84 and to a Manhattan perennial ryegrass + Emerald bentgrass + annual bluegrass fairway at the Cortland Country Club, Cortland, NY on 25 Oct 84. The latter site is located on a medium textured, well-drained Palymra gravelly silt loam. Chemicals were applied with a self-powered boom sprayer which delivered 5 gal suspension/1000 sq ft at 65 psi. Plots consisted of 4 ft x 12 ft areas replicated 4 times in a randomized complete block design at Lake Placid; and of 4 ft x 15 ft areas replicated 5 times, at Cortland. Both areas experienced prolonged heavy snow cover throughout the winter and were rated on 11 Apr and 23 Mar, respectively, within a week after the final snow melted off each site. Percentages of turf areas affected by winter diseases were estimated visually. An analysis of variance was performed and, where appropriate, the treatments were tested for significance with the Fisher least significant differences test. Single applications of BTS 40542, Caddy, Chipco 26019 and Rubigan significantly suppressed a severe occurrence of Fusarium patch at Cortland, but only BTS 40542 and Caddy provided aesthetically acceptable control. Typhula blight was the most important winter disease at Lake Placid, and was suppressed by Caddy, Daconil 2787, Rubigan and SN 84364. A tank mix with low rates of Chipco 26019 and Daconil 2787 provided control of Typhula blight equal to that from much higher rates of Daconil alone. This test constitutes the first demonstration that single applications of fungicides other than cadmium- and mercury-containing materials can adequately suppress occurrances of winter diseases in the high elevation regions of New York. Mixtures of the experimental compounds selective against T. incarnata (SN 84364) and M. nivalis(BTS 40542) were particularly noteworthy." |
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| Language: | English |
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| References: | 0 |
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| Note: | Table |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fowler, M. C., R. W. Smiley, J. W. Dudonnes, and W. Stark. 1986. Control of Winter Diseases, 1985.. Fungicide Nematicide Tests. 41:p. 159. |
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MSU catalog number: SB 951.3 .F82 |
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