Full TGIF Record # 11757
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Web URL(s):http://www.apsnet.org/publications/plantdisease/backissues/Documents/1988Articles/PlantDisease72n02_137.PDF
    Last checked: 08/25/2010
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Publication Type:
i
Refereed
Author(s):Wilkinson, H. T.
Author Affiliation:Assistant Professor, Department Plant Pathology, University of Illinois, Urbana-Champaign, Illinois
Title:Control of yellow ring in Kentucky bluegrass swards
Source:Plant Disease. Vol. 72, No. 2, February 1988, p. 137-139.
Publishing Information:St. Paul, Minn., American Phytopathological Society
# of Pages:3
Keywords:TIC Keywords: Yellow ring; Poa pratensis; Disease control; Trechispora alnicola; Crinipellis oreades; Agrostis stolonifera; Festuca rubra; Lolium perenne; Quintozene; Conidia
Abstract/Contents:"Trechispora alnicola is the causal agent of yellow ring of Poa pratensis. In culture, isolates collected from the same diseased pieces of sod or from different swards did not grow or produce conidia after the two thalli intersected. Transplantation of diseased sod failed to develop yellow ring after 3 yr. Twenty-one cultivars of P. pratensis were susceptible to infection by T. alnicola, but 10 or these cultivars showed low disease ratings. In addition, 50 of 89 bluegrass selections and crosses showed less disease. Bluegrass mixtures consisting of two to five cultivars developed severe yellow ring in the field. Agrostis palustris, Festuca rubra, and Lolium, perenne were not susceptible to infection by T. alnicola. The chemical PCNB (6.1 kg/ha) prevented the effective dissemination of T. alnicola and limited the severity of yellow ring in sod but did not eliminate disease symptoms. The fungicide propiconazole (6.1 kg/ha) reduced both the occurrence of new infections and disease severity but was less effective than PCNB."
Language:English
References:8
See Also:Other items relating to: P C N B - Quintozene
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wilkinson, H. T. 1988. Control of yellow ring in Kentucky bluegrass swards. Plant Dis. 72(2):p. 137-139.
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Web URL(s):
http://www.apsnet.org/publications/plantdisease/backissues/Documents/1988Articles/PlantDisease72n02_137.PDF
    Last checked: 08/25/2010
    Requires: PDF Reader
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