Full TGIF Record # 154512
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Web URL(s):https://www.plantmanagementnetwork.org/pub/trial/pdmr/volume3/abstracts/t55.asp
    Last checked: 03/21/2017
    Notes: Report Summary
https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T055.pdf
    Last checked: 11/11/2016
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Report
Author(s):Uddin, W.; Benelli, J.
Author Affiliation:Department of Plant Pathology, The Pennsylvania State University, University Park, Pennsylvania
Title:Management of crown rust of perennial ryegrass turf with fungicides, 2008
Section:Turfgrass
Other records with the "Turfgrass" Section
Source:PDMR: Plant Disease Management Reports. Vol. 3, 2009, p. T055.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Disease control; Fungicide efficacy; Fungicide evaluation; Lolium perenne; Puccinia coronata var. coronata
Cultivar Names:Legacy II
Abstract/Contents:"The study was conducted at the Valentine Turfgrass Research Center, University Park, PA, on perennial ryegrass maintained under golf course fairway management conditions, and mowed three times per week at 1.0-in. cutting height. The soil was Hagerstown silt loam with pH 6.8. The experimental turf area was fertilized with 0.5 lb nitrogen (Urea 46-0-0) on 25 April, 1.0 lb nitrogen (18-9-18) on 30 May, and 1.0 lb nitrogen (Urea 46-0-0) per 1,000 sq ft on 20 July. Additionally, Trimec Classic (3 pt/A) was applied on 27 May. Treatment plots, 3 ft x 6 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 1,000 sq ft. Treatments applications were made on 5 and 19 Aug, and 2, 16, and 30 Sep for 14-day interval, and on 5 and 26 Aug, and 16 Sep for 21-day interval. A total of 200 blades from each treatment plot was collected on 2 Oct and crown rust incidence (% leaf blades symptomatic) was assessed. Data were subjected to analysis of variance and multiple comparisons of the mean values were made using the Waller-Duncan k-ratio test. Conditions were highly favorable for development of crown rust. Development of large number of pustules with high population of uredioniospores provided heavy inoculum for the disease. Crown rust incidence assessment was made on 2 Oct when disease progress in untreated control plots reached incidence of 36%. On 2 Oct, 12 out of 28 treatments provided good control of crown rust (incidence less than 10%). Insignia (0.9 oz), Disarm (0.36 fl oz), Tartan (1.9 fl oz), Daconil Ultrex alone (3.2 oz) and Daconil Ultrex tank-mixed with Medallion (0.5 oz), Disarm C (4.32 oz), Disarm (0.18 oz), and Medallion (0.5 oz) applied at 14-day intervals provided satisfactory control of the disease. Additionally, Heritage TL at low (1 fl oz) and high (2 fl oz) rates applied at 21-day interval provided good control of the disease. No phytotoxicity was observed in any of the treatment plots."
Language:English
References:0
Note:This item is only an abstract and tables!
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Uddin, W., and J. Benelli. 2009. Management of crown rust of perennial ryegrass turf with fungicides, 2008. PDMR: Plant Dis. Manage. Rep. 3:p. T055.
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Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/pdmr/volume3/abstracts/t55.asp
    Last checked: 03/21/2017
    Notes: Report Summary
https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T055.pdf
    Last checked: 11/11/2016
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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