Image Number: 2110010

Photographer:
Descriptor:
Symptoms
Description:
Mature common alder (A. glutinosa) with collar rot by P. alni (note tarry spots at the outer bark) growing in a forest stand; introduction of the pathogen via alder plantation in the neighbourhood established with infested planting stock.
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 glutinosa (L.) Gaertn.
Node Affiliation:
Image uploaded:
Sunday, October 30, 2005
Image last updated:
Thursday, September 23, 2010