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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T039.pdf
Last checked: 11/11/2016
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| Publication Type:
| Report |
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| Author(s): | Uddin, W.;
Benelli, J.;
Yenez, J.;
Kern, J. |
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| Author Affiliation: | Department of Plant Pathology, The Pennsylvania State University, University Park, PA |
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| Title: | Effects of fungicides on dollar spot incidence in a bentgrass fairway, 2007 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | PDMR: Plant Disease Management Reports. Vol. 2, 2008, p. T039[1]-T039[2]. |
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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; Disease control; Disease incidence; Dollar spot; Fungicide efficacy; Fungicide evaluation; Sclerotinia homoeocarpa
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| Cultivar Names: | Penneagle |
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| Abstract/Contents: | "The experiment was conducted at the Valentine Turfgrass Research Center, University Park, PA, on a sward of creeping bentgrass maintained under golf course fairway management conditions. The turfgrass was mowed three times per week at 0.5-in. cutting height. The soil was a Hagerstown silt loam with pH 6.8. The experimental turf area was fertilized with 1.0 lb nitrogen (IBDU) and 1.0 lb nitrogen (18- 9-18) and per 1000 sq ft on 5 Jun. Scimitar (7.5 fl oz/A) was applied for cutworms on 8 May. Treatment plots, 3 ft Π6 ft, were arranged in a randomized complete block design with three replications. Treatments were applied with a CO2-powered sprayer, using a TeeJet 11008E nozzle at 40 psi, in water equivalent to 2 gal per 1000 sq ft. Applications were made on 25 May, 8 and 22 Jun, and 6 Jul for the 14-day interval, 25 May, 15 Jun, and 6 Jul for the 21-day interval, and 25 May and 22 Jun for the 28-day intervals. Disease incidence (number of necrotic spots per 3 ft Π6 ft plot.) was assessed on 7, 14, 21, and 28 Jun, and 5 and 12 Jul. Data were subjected to analysis of variance and multiple comparisons of the mean values were made using the Waller-Duncan k-ratio test (k=100). Environmental conditions were moderately warm and relative humidity was moderate to high which provided conducive conditions for dollar spot development. Dollar spot symptoms initially developed in early June with a mean disease incidence of 8 in untreated control plots, and the disease increased during the course of the experiment. For the first disease assessment, there was no dollar spot development in plots treated with Emerald (0.18 oz) and SARS-351 (1.5 fl oz). Plots treated every 14 days with Chipco 26GT (4 oz), Banner Maxx (2 oz), SARS-351 (1 fl oz), SARS-346 (0.5 oz), SARS-346 (0.5 oz) tank-mixed with 3336 (1.4 oz), and GF-1948 (0.5 oz) tank-mixed with Daconil Ultrex (3.2 oz), the plots remained relatively dollar spot free or showed only traces of disease throughout the course of the experiment. SARS-346 (0.75 oz), Banner MAXX (1 fl oz) tank-mixed with Daconil Ultrex (3.2 oz), and GF-1948 (1 fl oz) tank-mixed with Daconil Ultrex (3.2 oz) applied every 21 days, and SARS-346 (1 oz) applied every 28 days also showed similar control of dollar spot. No phytotoxicity was observed in any treatment plot." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is as abstract and tables only!
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Uddin, W., J. Benelli, J. Yenez, and J. Kern. 2008. Effects of fungicides on dollar spot incidence in a bentgrass fairway, 2007. PDMR: Plant Dis. Manage. Rep. 2:p. T039[1]-T039[2]. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T039.pdf
Last checked: 11/11/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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