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P. ramorum bleeding canker

Bark cracks with black ooze in coast live oak, a symptom of P. ramorum canker.

P. ramorum canker

Bark discoloration and zone lines in coast live oak (Quercus agrifolia)

P. ramorum Dieback and shoot blight on Grand fir

Dieback and shoot blight symptoms caused by P. ramorum on Abies grandis

P. ramorum leaf symptoms on tan oak

Tip symptoms on tanoak seedling (Notholithocarpus densiflorus).

P. ramorum on larch in the United Kingdom

Larch trees with P. ramorum in the UK