Full TGIF Record # 302103
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Web URL(s):https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/112118
    Last checked: 11/14/2018
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Mattox, Clint; Kowalewski, Alexander R.; McDonald, Brian
Author Affiliation:Mattox: Oregon State University, Corvallis, OR; Kowalewski and McDonald: Horticulture, Oregon State University - Horticulture, Corvallis, OR
Title:Iron sulfate and phosphorous acid suppresses microdochium patch on an annual bluegrass putting green
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Applied pest management: Diseases and weeds (Includes student competition)
Other records with the "Applied pest management: Diseases and weeds (Includes student competition)" Section
Meeting Info.:Baltimore, Maryland: November 4-7, 2018
Source:ASA, CSSA and SSSA International Annual Meetings. 2018, p. 112118.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy]
# of Pages:1
Keywords:TIC Keywords: Disease control; Golf greens; Ferrous sulfate; Microdochium patch; Phosphorus acid; Poa annua
Abstract/Contents:"The turfgrass disease Microdochium patch (Microdochium nivale) affects annual bluegrass in cool-humid regions. Restrictions on the use of fungicides are motivating turfgrass managers to explore ways of mitigating this disease using products like fertilizers. Previous research has demonstrated that iron sulfate suppresses Microdochium patch although turfgrass quality was reduced because of turfgrass thinning. Phosphorous acid applications have also been shown to suppress Microdochium patch, although not to levels considered acceptable for golfers. The objectives of this current field trial were to explore the impacts of different rates of iron sulfate applied in combination with phosphorous acid to quantify the suppression of Microdochium patch and to assess any abiotic damage that resulted from the treatment combinations. A field trial took place in Corvallis, OR on a sand-based annual bluegrass putting green from September to April and was repeated over two years beginning in 2016 and ending in 2018 in the absence of traditional fungicides. The experimental design was a 2 by 5 factorial treatment structure arranged in a randomized complete block design with four replications. Factors included 5 rates of iron sulfate (0, 12.2, 24.4, 48.8, and 97.6 kg FeSO4 • 7H2O ha-1) and two rates of phosphorous acid (0 or 3.7 kg H3PO3 ha-1). Golfer traffic simulating 76 golf rounds a day was performed by walking over the plots with golf shoes. Response variables included area under disease progress curve, turfgrass quality, abiotic damage assessment, and turfgrass color. Combinations of 3.7 kg H3PO3 ha-1 with either 12.2 or 24.4 kg FeSO4 • 7H2O ha-1 reduced disease severity and resulted in higher turfgrass quality ratings compared to using iron sulfate in the absence of phosphorous acid."
Language:English
References:0
Note:This item is an abstract only!
"140-7"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Mattox, C., A. R. Kowalewski, and B. McDonald. 2018. Iron sulfate and phosphorous acid suppresses microdochium patch on an annual bluegrass putting green. Agron. Abr. p. 112118.
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    Last checked: 11/14/2018
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