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Alder Dieback

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Phytophthora disease of alders (Alder dieback)
Scientific Name:

Phytophthora alni Brasier and Kirk (Brasier et al. 2004)

Common Name:
Alder dieback
Phytophthora disease of alders (Alder dieback), symptoms - Photo by Andrej Kunca; Slovakia National Forest Centre
Native To:

First identified in Europe (Aguayo et al. 2013)

Date of U.S. Introduction:

Not introduced

Means of Introduction:

European introductions occurred through infected nursery stock (Adams et al. 2008)


Infects and kills alder trees (trees of the genus Alnus) (Gibbs et al. 1999)

Current U.S. Distribution:
Not currently established

Distribution/Maps/Survey Status


Selected Resources

The section below contains selected highly relevant resources for this species, organized by source. To view all related content for this species, click on "View all resources for species" in the top left of this page.


Nature Conservancy. Don't Move Firewood.

International Government

Forestry Commission (United Kindom). Forest Research.