Towards Commoly Agreed Answers to Some Basic Questions on Esca

Giuseppe Surico


The present paper focuses on some basic questions about what we still call esca, such as: What is esca? Is
esca a complex of diseases including young esca, white rot and esca proper, while Pch causes decline on its own? Is the
concept of microbial succession to be retained, and what is its exact meaning? Can Pch, Pal and Fop be considered
primary pathogens? What should the decline associated with Pch (Pal, Pin?) be called? These and other questions
will be commented.

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