Phytophthora Research and Consultancy

This is an information by Dr. rer. silv. Thomas Jung expert for Phytophthora, forest and tree diseases and nurseries
http://www.tree-diseases.com

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Phytophthora Picture Gallery - Alder dieback

Planted 5-year-old common alder (A. glutinosa) with root and collar rot caused by P. alni showing sparse, chlorotic and small-sized foliage, crown dieback and early fructification.

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Picture 4 of 24