Erysiphe knautiae
Duby
KW [Darwin] 11329. Place of collection: Ukraine; Kharkiv Oblast; Vovchansk District; Verkhny Saltiv village (N50°09' E36°49'). Date of collection: 28 August 1985. Associated organism: Knautia arvensis (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..