Pinus radiata, note Stem canker associated with necrotic needles.
Photo Gallery
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P. pinifolia on Pinus radiata  |
P. ramorum canker  Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
P. cambivora coralloid irregular hyphae  Coralloid irregular hyphae |
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P. austrocedrae oogonia drawing  P. austrocedrae. Morphology of oogonia, oospores and antheridia. Bar: 10 mm. Greslebin et al. 2007 |
P. siskiyouensis bleeding canker  Bole lesions in the tissues under the bark of a bleeding canker: discoloration in the secondary phloem tissue |
P. cinnamomi hyphal swellings  P. cinnamomi hyphal swellings (or thin walled chlamydospores) |
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P. lateralis on Port Orford cedar  Atypical decline caused by aerial infections in Scaër, France |
P. cinnamomi on Fraser fir  Frasier fir Christmas trees, North Carolina |
Chlamydospore of P. lateralis  Laterally intercalary chlamydospore of Phytophthora lateralis |
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P. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |
Port Orford cedar seedlings  Raised beds for testing disease resistance of Port-Orford-cedar seedlings at the Dorena Genetic Resource Center |
P. cambivora sporangium with nested proliferation  Empty sporagia showing internal nested proliferation |