How many species of phytopathogenic fungi have been described?

10 March 2014 1 10K Report

I am wondering if somebody has an idea of how many species of phytopathogenic fungi have been described? Ideally across all ecosystems, but an answer specific to agricultural systems would already be nice. I would need a quotable source (paper/book).

Aziz Ahmed Ujjan

Please go through a book "Plant pathology" by Agrios....

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