Alder Spittlebug vs Onion Downy Mildew

Aphrophora alni compared with Peronospora destructor

Key Differences

• Alder Spittlebug is Least Concern while Onion Downy Mildew is Not Evaluated.

Taxonomic Classification

Rank	Alder Spittlebug	Onion Downy Mildew
Kingdom	Animalia (Animals)	Chromista (Chromista)
Phylum	Arthropoda (Arthropods)	Oomycota (Oomycetes)
Class	Insecta (Insects)	Peronosporea (Peronosporea)
Order	Hemiptera (Hemiptera)	Peronosporales (Peronosporales)
Family	Aphrophoridae	Peronosporaceae
Genus	Aphrophora	Peronospora
Species	Aphrophora alni	Peronospora destructor

Conservation Status

Alder Spittlebug

LC — Least Concern

Onion Downy Mildew

NE — Not Evaluated

Physical Characteristics

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

Habitat & Geographic Range

Alder Spittlebug

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (5 countries) and North America (United States).

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).

Alder Spittlebug

The Alder Spittlebug (Aphrophora alni) is a species in the genus Aphrophora. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Shared Countries

Both species can be found in 3 countries:

🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States