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| Publication Type:
| Report |
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| Author(s): | Tisserat, N.;
Pair, J. |
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| Author Affiliation: | Dept. of Plant Pathology; Dept. of Horticulture, Forestry and Recreation Resources; Kansas State University, Manhattan, KS |
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| Title: | Preventive fall applications for control of spring dead spot of bermudagrass, 1992 |
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| Source: | Fungicide and Nematicide Tests. Vol. 48, 1993, p. 358. |
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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: Cynodon dactylon; Spring dead spot; Fungicide application; Disease development
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| Abstract/Contents: | "Fungicides were evaluated for control of spring dead spot (SDS) on 'E-29' bermudagrass at the Horticultural Research Center, Wichita, and on 'Mid-Mo' bermudagrass at the Rocky Ford Experiment Station, Manhattan. Fungicides were applied with a CO2-powered backpack sprayer with 8004 flat fan nozzles at 20 psi in water equivalent to 4.5 gal/1000 ft2. Applications were made on 5 Sep and 7 Oct 91 in Manhattan and on 6 Sep and 10 Oct in Wichita. Plots were 5 x 6 ft arranged in a randomized complete block with four replicates at both locations. Plots were rated on 28 Apr 92 in Manhattan and 12 May in Wichita for the percentage plot area diseased and the percentage of dead turf within diseased patches (Manhattan only). Data were analyzed by ANOVA followed by Fischer's protected LSD (FLSD) at P = 0.05. Spring dead spot severity was highly variable in plots at both locations. In Manhattan, SDS decreased (P < 0.05) across blocks, possibly as a result of an overlap of late fall irrigations from an adjacent cool-season turfgrass plot. Those bermudagrass blocks receiving additional water had less disease. None of the fungicides tested in Manhattan significantly reduced the percentage plot area diseased, although Banner 2 on Sep + Oct and Lynx 3 oz Sep did decrease the percentage of dead turf within SDS patches. In Wichita, Sep applications of all fungicides tested significantly reduced SDS severity, although they did not completely suppress disease development. In general, Sep applications were more effective than those made in Oct. Our results suggest that early Sep fungicide applications may reduce disease severity and the percentage of dead stolons within patches but probably do not give an acceptable level of control for commercial applications." |
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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):
Tisserat, N., and J. Pair. 1993. Preventive fall applications for control of spring dead spot of bermudagrass, 1992. Fungicide Nematicide Tests. 48:p. 358. |
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