Full TGIF Record # 203961
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Web URL(s):https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2012/T009.pdf
    Last checked: 11/14/2016
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Publication Type:
i
Report
Author(s):Koch, P. L.; Kerns, J. P.
Author Affiliation:Department of Plant Pathology, University of Wisconsin, Madison, WI
Title:Preventative fungicide applications for the control of dollar spot at putting green height, 2011
Section:Turfgrass
Other records with the "Turfgrass" Section
Source:PDMR: Plant Disease Management Reports. Vol. 6, 2012, p. T009.
Publishing Information:St. Paul, Minnesota: American Phytopathological Society
# of Pages:2
Related Web URL:http://www.plantmanagementnetwork.org/pub/trial/PDMR/volume6/abstracts/T009.asp
    Last checked: 04/30/2012
    Access conditions: Document is within a limited-access website
    Notes: Summary only
Keywords:TIC Keywords: Agrostis stolonifera; Dollar spot; Fungicide evaluation; Golf greens; Preventive control; Sclerotinia homoeocarpa; Waller-Duncan test
Abstract/Contents:"This evaluation was conducted at the OJ Noer Turfgrass Research and Education Facility in Verona, WI on a creeping bentgrass putting green maintained at 0.140-in. grown on a 70:30 sand-soil rootzone. Individual plots measured 3 ft x 5 ft and were arranged in a randomized complete block design with four replications. Individual treatments were applied at a nozzle pressure of 40 psi using a CO2-pressurized boom sprayer equipped with two XR Teejet 8004 VS nozzles. All fungicides were agitated by hand and applied in the equivalent of 2.0 gal water per 1,000 ft2. All treatments were initiated 2 Jun, and subsequent applications were made at 7, 14, or 21 day intervals. Dollar spot pressure was minimal therefore the experimental area was inoculated during the end of August with S. homoeocarpa infested Kentucky bluegrass seed using a drop spreader. The number of dollar spot infection centers per plot and turf quality were visually assessed weekly from Jun until Sep. Data from 25 Aug, 7 and 20 Sep are presented. Data collected were subjected to an analysis of variance, and means separated using the Waller-Duncan test. Dollar spot was slow to develop in 2011, and the experimental area was inoculated in early August to ensure disease development. By late August disease pressure was extremely high, with non-treated controls averaging over 300 foci per plot by late September. All treatments suppressed dollar spot at all three rating dates compared to the non-treated control. Rotations of different active ingredients provided the best dollar spot suppression, but some single products provided excellent suppression as well; including Reserve, Concert, Tourney, Renown and Emerald. Torque (tebuconazole) and Spectro, rotated every 14 days with 26/36 also provided excellent dollar spot control, as did QP Tebuconazole rotations with several other fungicides. Turfgrass quality ratings mirrored dollar spot severity, with Reserve and the Quali-Pro mixtures generally providing the highest quality throughout the trial. No phytotoxicity was observed with any product."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Koch, P. L., and J. P. Kerns. 2012. Preventative fungicide applications for the control of dollar spot at putting green height, 2011. PDMR: Plant Dis. Manage. Rep. 6:p. T009.
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https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2012/T009.pdf
    Last checked: 11/14/2016
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    Access conditions: Item is within a limited-access website
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