Photo Gallery

P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica)	P. boehmeriae chlamydospore Globose chlamydospore of P. boehmeriae	P. cambivora coralloid hyphae Coralloid hyphae with hyphal swelling-like structures
P. siskiyouensis bleeding canker Close-up of margin area of bole lesions under the bark of a bleeding canker	P. cambivora coralloid irregular hyphae Coralloid irregular hyphae	P. cambivora colony morphology on MA Appressed colony morphology at 14 days at 20°C on MA
P. nemorosa sporangia Ovoid, semi-papillate sporangia showing sympodial development of sporangiophore	P. pluvialis on Pinus radiata A Pinus radiata needle showing black resinous bands or marks consistent with the presence of red needle cast disease.	P. ramorum leaf symptoms on tan oak Tip symptoms on tanoak seedling (Notholithocarpus densiflorus).
P. cinnamomi on Fraser fir Frasier fir Christmas trees, North Carolina	P. katsurae disease symptoms Infected chestnut tree with girdling canker on stem	P. pinifolia on Pinus radiata Dead needles on lower side of P. radiata branch.