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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2006/T023.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Vincelli, P.;
Dixon, E.;
Williams, D.;
Burrus, P. |
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| Author Affiliation: | Vincelli and Dixon: Department of Plant Pathology; Williams and Burrus: Department of Plant and Soil Science, University of Kentucky, Lexington, Kentucky |
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| Title: | Efficacy of nozzle coverage and fungicide control of dollar spot on a creeping bentgrass sand-based green, 2005 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | F&N Tests. Vol. 61, 2006, p. T023. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Dollar spot; Nozzles; Disease control; Fungicide trials; Sand-based golf greens; Disease severity; Application rates
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| Cultivar Names: | Penncross |
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| Abstract/Contents: | "The test was conducted on a sand-based green located at the University of Kentucky Turf Research Center near Lexington. The turf was maintained at 0.188-in. mowing height and fertilized with 1.5 lb N/1000 sq ft as 18-6-15 on 10 Nov 04, and with 1.0 lb N/1000 sq ft as 18-0-18 on 17 Jun 05. Plots measured 5 ft x 5 ft with 2-ft borders, and were arranged in a randomized complete-block design with three replications. Fungicide sprays were applied using a CO2-pressurized hand-held sprayer fitted with a pair of one of 4 nozzles: XR Teejet flat fan nozzle (XR11004-VS), Turfjet wide angle flat nozzle (1/4TTJ04-VS), AI Teejet air induction nozzle (AI1004-VS), or Raindrop RA-4 nozzle (35654-2), each delivering 1.5 gal/1000 sq ft at 35 psi. Treatments were first applied on 5 May 05 after dollar spot was detected, with the remaining treatments applied on a 4-wk interval (final application on 1 Jul 05). Visual counting of dollar spot infection centers were obtained weekly, from the center 2.5 ft x 2.5 ft section of each plot. Spray coverage was evaluated using watersensitive paper. Transformed data (log10) were analyzed using ANOVA and Waller-Duncan k-ratio t-test, (k=100). Although statistics provided are based on analysis of transformed data, arithmetic means are presented in order to provide a better indication of the level of disease control provided by each treatment as well as the overall disease pressure in the trial. In a factorial analysis only the main effects were significant, with a non-significant interaction of chemical treatment X nozzle (P>0.1). Weather was moderately favorable for dollar spot activity, and disease pressure was moderate with high variability. Although the effect of nozzle type on disease control was somewhat variable, application using nozzles that provide over 95% coverage of the watersensitive paper (XR Teejet flat fan nozzle and AI Teejet air induction nozzle) was associated with improved disease control in several instances, (Tables 1, 2) but this did not result in significant reduction in the area under the disease progress curve (Table 3). No phytotoxicity or growth regulator effects were noted in the trial." |
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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):
Vincelli, P., E. Dixon, D. Williams, and P. Burrus. 2006. Efficacy of nozzle coverage and fungicide control of dollar spot on a creeping bentgrass sand-based green, 2005. F&N Tests. 61:p. T023. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/fntests/reports/2006/T023.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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MSU catalog number: SB 951.3 .F82 |
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