sourceTaxonName: Erysiphe graminis f. sp. avenae
targetTaxonName: Avena sativa
localityName: United States
referenceCitation: Rosen, H.R.. 1957. Epidemics of powdery mildews in Arkansas in 1956 with special referen ce to powdery mildew on winter oats. Pl. Dis. Reporter 41:330-336