sourceTaxonName: Valsa sordida
targetTaxonName: Populus nigra
localityName: South Africa
referenceCitation: Adams, G.C., Roux, J., and Wingfield, M.J.. 2006. %Cytospora% species (Ascomycota, Diaporthales, Valsaceae): introduced and native pathogens of trees in South Africa. Australasian Plant Disease Notes 35:521-548