Peronospora arthurii
- kingdom: Chromista
- phylum: Oomycota
- class: Peronosporea
- order: Peronosporales
- family: Peronosporaceae
- genus: Peronospora
- species: Peronospora arthurii
- London
Ontario
Canada- Belmont
- Watertown
- West Falmouth
- Westford
Massachusetts- Starkville
Mississippi- Red Cloud
Nebraska- Cayuga Heights
- East Ithaca
- Ithaca
- South Hill
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New York- Corvallis
Oregon
United States