Erysiphe russellii
- kingdom: Fungi
- phylum: Ascomycota
- class: Leotiomycetes
- order: Erysiphales
- family: Erysiphaceae
- genus: Erysiphe
- species: Erysiphe russellii
Greencastle
Indiana- Ames
Iowa- Newfane
Vermont
United States
Erysiphe russellii Greencastle Ames Newfane