Onion Downy Mildew vs

Peronospora destructor compared with Peronospora ranunculi

Taxonomic Classification

Rank	Onion Downy Mildew
Kingdom same	Chromista (Kromista)	Chromista (Kromista)
Phylum same	Oomycota (Oomycetes)	Oomycota (Oomycetes)
Class same	Peronosporea (Peronosporea)	Peronosporea (Peronosporea)
Order same	Peronosporales (Peronosporales)	Peronosporales (Peronosporales)
Family same	Peronosporaceae	Peronosporaceae
Genus same	Peronospora	Peronospora
Species	Peronospora destructor	Peronospora ranunculi

Evolutionary Relationship

Onion Downy Mildew and share a common ancestor at the Genus level: Peronospora.

Conservation Status

Onion Downy Mildew

NE — Not Evaluated

NE — Not Evaluated

Physical Characteristics

Attribute	Onion Downy Mildew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Onion Downy Mildew

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Brazil).

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Norway, and Sweden.

Peronospora ranunculi is an oomycete downy mildew pathogen in the family Peronosporaceae, an obligate biotrophic parasite of buttercup plants (Ranunculus species). It infects leaves and stems causing chlorotic lesions on the upper surface and characteristic grayish sporulation on the undersurface. Like other Peronospora species, it spreads via air-dispersed sporangiospores and requires living host tissue to complete its lifecycle.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇸🇪 Sweden