Bleeding canker on red oak (Quercus rubra)
Photo Gallery
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P. cactorum bleeding canker  |
P. cambivora oogonium  Bullate oogonium and and two-celled amphigynous antheridium |
P. pseudotsugae colony morphology on PDA  P. pseudotsugae colony growth on PDA agar |
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P. lateralis on Port Orford cedar  Localized branch infection of Chaemacyparis lawsoniana in Lopérec, France |
P. ramorum sporangia and chlamydospores  Sporangia and chlamydospores of P. ramorum |
P. tentaculata disease symptoms on California mugwort  Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
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P. ramorum Dieback and shoot blight on Grand fir  Dieback and shoot blight symptoms caused by P. ramorum on Abies grandis |
P. nemorosa sporangium  Ovoid, semi-papillate sporangium showing medium length pedicel. |
P. cambivora sporangium  Ovoid non-papillate sporangia with well-rounded base |
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P. cryptogea colony morpholgy on PDA  Colony morphology on PDA at 14 days |
P. ramorum canker  Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
P. ramorum colony morphology on CMA PARP  P. ramorum colony morphology on CMA PARP |