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| Publication Type:
| Report |
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| Author(s): | Tisserat, N. A. |
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| Author Affiliation: | Department of Plant Pathology, Kansas State University |
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| Title: | Preventive fall fungicide applications for control of Rhizoctonia large patch disease of zoysiagrass, 1996 |
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| Source: | Fungicide and Nematicide Tests. Vol. 52, 1997, p. 400. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Fungicide plots were established on a zoysiagrass `Meyer' fairway at the Highlands Golf Course in Hutchinson, KS. Fungicides were applied with a CO² backpack sprayer with 8003 TeeJet flat fan nozzles at 30 psi in water equivalent to 4.3 gal per 1000 sq ft. Treatment plots were 10 X 12 ft and replicated 3 times in a randomized complete-block design. Plots were not irrigated after fungicide application. The percentage plot area diseased was recorded on 14 May 96 after zoysiagrass resumed spring growth. The fall of 95 was very dry, and large patch was not evident before the zoysiagrass went dormant. The winter was also very dry and cold. As a result, the turfgrass was slow to break winter dormancy (approximately 2 weeks later than normal). Large patch severity at the time of rating was light. Nevertheless, within nontreated plots damage averaged 28% of the plot area. There was no evidence of active colonization of the turfgrass by the fungus, suggesting that most turf damage was a result of late fall infection. Several fungicides significantly reduced severity of large patch. Plots treated with Prostar, Lynx, Heritage, Sentinel, Bayleton, Penstar, and Banner plus Medallion gave an aesthetically acceptable (<5% damage) level of control. Plots treated with Sentinel appeared to be slower to break winter dormancy and were slightly off-color (lighter green). Results for the past several years indicate that a preventive fungicide treatment in late September is effective in suppressing both fall and early spring symptoms of Rhizoctonia large patch." |
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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):
Tisserat, N. A. 1997. Preventive fall fungicide applications for control of Rhizoctonia large patch disease of zoysiagrass, 1996. Fungicide Nematicide Tests. 52:p. 400. |
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