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| Publication Type:
| Report |
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| Author(s): | Tredway, L. P.;
Clarke, B. B.;
Majumdar, P. R. |
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| Author Affiliation: | Department of Plant Pathology, Rutgers University, New Brunswick, NJ |
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| Title: | Evaluation of fungicides for control of fusarium patch, 1998 |
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| Source: | Fungicide and Nematicide Tests. Vol. 54, 1999, p. 500. |
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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: Agrostis stolonifera; Microdochium patch; Snow molds; Microdochium nivale; Disease control; Fungicide evaluation; Application timing; Application rates; Tank mix; Disease severity
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| Cultivar Names: | Penncross |
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| Abstract/Contents: | "Fungicides were evaluated for their ability to control Fusarium patch on a putting green at the Peace Pipe Country Club in Denville, NJ. The test area was mowed at a height of 0.156 in. seven times per week with clippings collected. The turf was irrigated to avoid drought stress. Fertilizer was applied as 18-3-17 on 23 Aug 1997 (1 lb N/1000 sq ft) and 1 Apr 1998 (1 lb N/1000 sq ft) and as 10-10-10 on 26 Apr 1998 (0.5 N/1000 sq ft). Daconil 2787 4F (6 oz/1000 sq ft) was applied on 5 Aug 1997 and Bayleton 25DF (2 oz/1000 sq ft) was applied 15 Aug 1997 and 1 Sep 1997. Plots were 3 ft x 9 ft and were arranged in a randomized complete block with four replications. Fungicides were applied in water equivalent to 2 gal/1000 sq ft with a CO₂ powered sprayer at 30 psi using TeeJet 8003E nozzles or by hand using a shaker jar. Granular materials were watered into the thatch with 1 gal water per 27 sq ft plot. Treatments (trt) were first applied on 11 Nov 1997. Fungicides requiring a spring application were applied on 29 Jan 1998 as indicated in the table. The number of Fusarium patch infection centers per plot was assessed on 21 Nov 1997, 29 Jan 1998, and 10 Mar 1998. Average patch diameter was 3 in. Data were subjected to analysis of variance and means separation by the Waller-Duncan k-ratio t-test (k=100). Little snow accumulation was observed during the experimental period, however, significant Fusarium patch development occurred during cool, moist weather from Nov 1997 to Mar 1998. Disease development was first observed before the trial was initiated on 11 Nov 1997. On that date, no significant differences were observed among treatments (data not shown). Excellent control of Fusarium patch was provided by most treatments in this trial through 10 Mar 1998. The 8.0 fl oz rate of Chipco 26GT (trt 7) provided excellent control when applied in the fall and spring, but applications in the spring only (trt 8) or at the 4.0 fl oz rate (trt 6) were not effective. The addition of Defend 4F to WAC-71 90WG (trt 31) extended the control provided by WAC-71 90WG alone (trt 29), and the tank mix of Heritage 50WG + Par Flo 4F (trt 17) significantly extended the control provided by Heritage 50 WG alone (trt 14). Chipco 26019 2F + Daconil 2787 4F (trt 5) provided excellent control through 10 Mar 1998, whereas Daconil 2787 4F (trt 4) and Chipco 26GT 2SC (trt 6) alone at the same rates provided fair and poor control, respectively. No winter injury or other forms of phytotxicity were observed." |
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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):
Tredway, L. P., B. B. Clarke, and P. R. Majumdar. 1999. Evaluation of fungicides for control of fusarium patch, 1998. Fungicide Nematicide Tests. 54:p. 500. |
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