sourceTaxonName: Phoma macdonaldii
targetTaxonName: Helianthus annuus
localityName: United States
referenceCitation: Donald, P.A., Venette, J.R., and Gulya, T.J.. 1987. Relationship between %Phoma macdonaldii% and premature death of sunflower in North Dakota.. Pl. Dis. 71:466-468