Phytophthora disease of alders (Phytophthora alni ) on gray alder (Alnus incana ) - 2110008

Phytophthora disease of alders
Phytophthora alni Brasier & S.A. Kirk

Host: gray alder (Alnus incana (L.) Moench)
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
Image location: Germany

Photographer Information

Name: Thomas Jung
Country: Germany

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Image Number: 2110008

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Image Citation:(?) Thomas Jung, Bugwood.org

Node Affiliation: University of Georgia

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Image uploaded on Sunday, October 30, 2005
Image Information last updated on Wednesday, September 22, 2010