Tar spots on European beech (Fagus sylvatica) with bark removed. Lesse, Germany
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P. cambivora tar spots |
P. chlamydospora sporangium Phytophthora chlamydospora sporangium in water. Bar is 20µm. |
P. cinnamomi on Jarrah Dieback in Jarrah, Western Australia |
P. pluvialis on Pinus radiata in New Zealand Lesions consistent with the presence of red needle cast disease are more abundant at the base of Pinus radiata needles as indicated by the arrow. |
P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica) |
P. ramorum colony morphology on PDA P. ramorum colony morphology on PDA |
P. ramorum canker Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
P. agathidicida sporangium Globose to ovoid-ellipsoid, papillate sporangium |
P. cambivora colony morphology on V8 Colony morphology on V8 at 14 days |
P. pinifolia on Pinus radiata Pinus radiata, note Stem canker associated with necrotic needles. |
P. ramorum chlamydospores P. ramorum chlamydospores |
P. pseudotsugae amphigynous oogonium P. pseudotsugae oogonium with amphigynous antheridia |