Image Number: 2110008

Photographer:
Descriptor:
Symptoms
Description:
Grey alder (A. incana) with collar rot caused by P. alni; note the typical tarry spots at the outer bark and the tongue-shaped orange-brown necrosis of the inner bark.
Image type:
Field

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Image location:
Germany

Subject

Kingdom: Chromista
Phylum: Oomycota
Class: Oomycetes
Order: Peronosporales
Family: Pythiaceae
Genus: Phytophthora
Subject: Phytophthora alni Brasier & S.A. Kirk

Host

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Hamamelidae
Order: Fagales
Family: Betulaceae
Genus: Alnus
Subject: Alnus incana (L.) Moench
Node Affiliation:
Image uploaded:
Sunday, October 30, 2005
Image last updated:
Wednesday, September 22, 2010