Bark cracks with black ooze in coast live oak, a symptom of P. ramorum canker.
Photo Gallery
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P. ramorum bleeding canker  |
P. nicotianae chlamydospore  Globose chlamydospore (Fitopatol. bras. 2005) |
P. megakarya sporangium  Caducous papillate sporangium of P. megakarya |
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P. austrocedrae - Mal del ciprés, stages of decline  Mal del ciprés, stages of decline |
Growth of P. megakarya on corn meal agar
 Growth of P. megakarya on corn meal agar |
P. tentaculata oogonia and antheridia  Oospores and oogonia with mostly paragynous but some amphigynous antheridia of P. tentaculata |
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P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20 µm. |
P. lateralis on Port Orford cedar  Root lesions on Chaemacyparis lawsoniana |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
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P. ramorum oogonium  Oogonium with thick oogonial wall, photo from Q-bank, used with permission |
P. kernoviae leaf wilt  Wilted leaf of infected rhododendron |
P. cambivora sporangium with internal extended proliferation  Empty sporagia showing internal nested and extended proliferation |