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| Publication Type:
| Report |
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| Author(s): | Gleason, M. L.;
Snook, D. |
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| Author Affiliation: | Dept. of Plant Pathology, Iowa State University, Ames, IA |
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| Title: | Evaluation of fungicides for control of snow molds on creeping bentgrass, 1990-1991 |
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| Source: | Fungicide and Nematicide Tests. Vol. 47, 1992, p. 286. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| Keywords: | TIC Keywords: Agrostis; Evaluations; Fungicides; Disease control; Snow molds
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| Abstract/Contents: | "The trial was conducted on a creeping bentgrass green at the Waverly Municipal Golf Course, Waverly, IA. This green had a history of outbreaks of gray and pink snow molds in most of the last 10 years. The experimental design was a randomized complete block with 4 replications. All plots measured 5 ft x 5 ft. Fungicides were applied on 13 Nov 90, using a modified bicycle sprayer at 30 psi and a dilution rate of 5 gal/1000 sq ft. Immediately after application of fungicides, the entire plot was covered with two layers of Curlex High-Velocity excelsior mats (American Excelsior Co., St. Paul, MN). The mats were fixed in place with wire stakes. The purpose of the mats was to simulate snow cover and provide favorable conditions for the development of snow mold even in the absence of snow cover (W. Stienstra, Department of Plant Pathology, University of Minnesota, personal communication). Snow cover persisted on the green from 5 Dec 90 until 1 Mar 91. Mats were removed on 6 Mar. On that date, symptoms of gray and pink snow mold were abundant at many sites on the golf course. Snow mold development on untreated check plots was moderate. Symptoms of both gray and pink snow mold were evident in these plots. All fungicide treatments gave significantly better control of snow mold than the untreated check; 9 of 11 fungicide treatments were free of snow mold damage. None of the fungicide treatments was significantly different from the others in disease suppression. Treatments that had incorporated green paint were perceptibley greener in color than other treatments. No phytotoxicity symptoms were observed. Because snow mold occurred naturally at Waverly Municipal Golf Course in 1990-91, no conclusion could be drawn about the effect of excelsior mats on disease development. However, in winters with less than 3 months of snow cover (a common occurrence in Iowa), the mats may provide temperature and moisture conditions favorable for snow mold development." |
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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):
Gleason, M. L., and D. Snook. 1992. Evaluation of fungicides for control of snow molds on creeping bentgrass, 1990-1991. Fungicide Nematicide Tests. 47:p. 286. |
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