The influence of grapevine cultivar and isolate of Eutypa lata on wood and foliar symptoms

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dc.contributor.authorSosnowski, M.
dc.contributor.authorLardner, R.
dc.contributor.authorWicks, T.
dc.contributor.authorScott, E.
dc.date.issued2007
dc.descriptionCopyright © 2007 The American Phytopathological Society
dc.description.abstractGrapevine cultivar (Vitis vinifera) and isolate of Eutypa lata influence wood and foliar symptoms of Eutypa dieback. Foliar symptoms of Eutypa dieback developed within 8 months of inoculating young grapevines (cvs. Grenache, Cabernet Sauvignon, and Merlot) in a shadehouse. Isolates of E. lata from various wine regions in southern Australia varied in their ability to colonize inoculated grapevines and induce wood and foliar symptoms. Grapevine cultivars varied for wood and foliar symptom expression but not for mycelial colonization. However, the severity of foliar symptoms was not related to the rate of spread of the fungus in the grapevine. Furthermore, the staining of wood typically attributed to E. lata did not reflect the presence of the fungus because the fungus was detected up to 80 mm beyond the stain. A field trial with mature grapevines revealed significant differences in the rate of spread of wood staining due to E. lata among eight cultivars, with up to 50 mm/year detected in Cabernet Sauvignon and Shiraz grapevines. In the shadehouse, the maximum growth rate of E. lata was recorded to be 115 mm/year for Grenache rootlings. Information from this study may help to optimize management strategies for maintaining productivity of grapevines with Eutypa dieback, thus reducing the economic impact of the disease.
dc.description.statementofresponsibilityM. R. Sosnowski, R. Lardner, T. J. Wicks, E. S. Scott
dc.identifier.citationPlant Disease: an international journal of applied plant pathology, 2007; 91(8):924-931
dc.identifier.doi10.1094/PDIS-91-8-0924
dc.identifier.issn0191-2917
dc.identifier.issn1943-7692
dc.identifier.orcidSosnowski, M. [0000-0003-3112-0198]
dc.identifier.orcidScott, E. [0000-0001-6829-519X]
dc.identifier.urihttp://hdl.handle.net/2440/43532
dc.language.isoen
dc.publisherAmer Phytopathological Soc
dc.source.urihttps://doi.org/10.1094/pdis-91-8-0924
dc.subjectpathogenicity
dc.titleThe influence of grapevine cultivar and isolate of Eutypa lata on wood and foliar symptoms
dc.typeJournal article
pubs.publication-statusPublished

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