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Host Range of Australian Phoma ligulicola var. inoxydablis Isolates from Pyrethrum


Pethybridge, SJ and Hay, FS and Clarkson, R and Groom, T and Wilson, CR, Host Range of Australian Phoma ligulicola var. inoxydablis Isolates from Pyrethrum, Journal of Phytopathology, 156, (7-8) pp. 506-508. ISSN 0931-1785 (2008) [Refereed Article]

DOI: doi:10.1111/j.1439-0434.2008.01401.x


Ray blight, caused by Phoma ligulicola var. inoxydablis is one of the most damaging diseases of pyrethrum (Tanacetum cinerariifolium [Trevir.] Sch. Bip.) in Australia. The pathogenicity of P. ligulicola var. inoxydablis to a range of ornamental and other plant species was tested to determine potential sources of inoculum into pyrethrum crops. Differences were identified in the host range of P. ligulicola var. inoxydablis isolates in this study in comparison with isolates reported from garden chrysanthemum (Chrysanthemum morifolium L.), most likely to be P. ligulicola var. ligulicola. Australian P. ligulicola var. inoxydablis isolates were unable to infect and cause disease following repeated inoculation to zinnia (Zinnia elegans L.), sunflower (Helianthus annuus L.), dahlia (Dahlia variabilis Desf.), and several cultivars of crisphead lettuce (Lactuca sativa L.). French marigold (Tagetes patula L.) was recorded as a susceptible host for this pathogen for the first time. Moreover, the susceptibility of annual chrysanthemum (Chrysanthemum carinatum L.) to infection by P. ligulicola var. inoxydablis was confirmed. Implications for disease management in Tasmanian pyrethrum fields are discussed. © 2008 Blackwell Verlag.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant pathology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Horticultural crops not elsewhere classified
UTAS Author:Pethybridge, SJ (Dr Sarah Pethybridge)
UTAS Author:Hay, FS (Dr Frank Hay)
UTAS Author:Clarkson, R (Miss Rebecca Clarkson)
UTAS Author:Wilson, CR (Professor Calum Wilson)
ID Code:48801
Year Published:2008
Funding Support:Australian Research Council (LP0560562)
Web of Science® Times Cited:11
Deposited By:Agricultural Science
Deposited On:2008-07-14
Last Modified:2011-11-16

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