Full TGIF Record # 163432
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Web URL(s):https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2008/T015.pdf
    Last checked: 11/14/2016
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Publication Type:
i
Report
Author(s):Soika, M. D.; Tredway, L. P.
Author Affiliation:Department of Plant Pathology, North Carolina State University, Raleigh, NC
Title:Impact of Trinity and other DMI fungicides on the quality of bermudagrass putting greens, 2007
Section:Turfgrass
Other records with the "Turfgrass" Section
Source:PDMR: Plant Disease Management Reports. Vol. 2, 2008, p. T015.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Cynodon dactylon x Cynodon transvaalensis; DMI fungicides; Fungicide injury; Golf greens; Putting quality; Triticonazole; Turfgrass quality
Cultivar Names:TifEagle
Trade Names:Trinity
Abstract/Contents:"DMI fungicides were evaluated for their impact on the quality of Tifeagle bermudagrass maintained under golf course putting green conditions. This trial was conducted at the Lake Wheeler Turfgrass Field Lab in Raleigh, NC. The turf was mowed four times weekly at a height of 0.165 in. with clippings collected, and the site was irrigated to prevent drought stress. Fertilizer was applied as 26-0-22 on 15 Mar (0.33 lb N/1000 sq ft), 18-3-16 on 13 Apr (0.75 lb N/1000 sq ft), 30-0-0 on 17 May and 25 Jul (2.6 and 0.3 lb N/1000 sq ft, respectively), 18-0-12 on 7 Jun and 29 Aug (0.25 lb N/1000 sq ft), 18-19-18 on 3 Jul (0.25 lb N/1000 sq ft), and 20-20-20 on 4 Sep (0.36 lb N/1000 sq ft). Micronutrients were applied as Maxigreen (6.0 fl oz/1000 sq ft) on 7 Jun. Ronstar 2G (2 lb ai/a) was applied on 26 Feb for pre-emergence control of crabgrass and goosegrass. Revolution (6.0 fl oz/1000 sq ft) was applied on 25 Jul to improve water infiltration. Plots were 3.33 ft x 6 ft and were arranged in a randomized complete block with four replications. Fungicides were applied in water equivalent to 2 gal per 1000 sq ft with a CO2 powered sprayer at 40 psi using a TeeJet 9508E nozzle. All treatments were initiated on 19 Jun and were reapplied on 14-day intervals. Turfgrass quality was evaluated on 6, 15, and 28 Aug, and 11 Sep using a 1 to 9 scale (9=best, 5=acceptable) based on color, density, and uniformity. Data were subjected to analysis of variance (α=0.05) and means separation by Waller-Duncan k-ratio t test (k=100). Weather conditions were abnormally hot and dry during the course of this study, resulting in considerable turfgrass stress. No fungicide treatments improved turf quality as compared to the untreated control. Trinity (2.0 fl oz) and Lynx (2.0 fl oz) induced significant foliar bronzing and thinning of the turf canopy, resulting in unacceptable turf quality on all rating dates. Applications of Bayleton (1 oz) also caused unacceptable injury to the turf on 6 Aug, 15 Aug, and 11 Sep. Eagle WSP caused a significant reduction of turfgrass quality on 6 Aug, but had no significant impact on evaluation dates thereafter. No adverse side effects were induced by applications of Trinity (0.5, 0.75, or 1 fl oz) or Banner Maxx (2 fl oz) during this trial."
Language:English
References:0
Note:This item is as abstract and tables only!
Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Soika, M. D., and L. P. Tredway. 2008. Impact of Trinity and other DMI fungicides on the quality of bermudagrass putting greens, 2007. PDMR: Plant Dis. Manage. Rep. 2:p. T015.
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    Last checked: 11/14/2016
    Requires: PDF Reader
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