pest photo

Petr Kapitola, Central Institute for Supervising and Testing in Agriculture, Bugwood.org
Blue stain fungus
Ophiostoma longicolla

Blue stain fungus (Ophiostoma longicolla) is a fungal pathogen. It is a native of Japan.

Oak mortality is reported to be occurring in at least two species of Quercus over a wide area of Japan but detailed information on the distribution or pathology of this fungus is not available. .
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