A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion.
Photo Gallery
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P. pluvialis on Pinus radiata in New Zealand  |
P. ramorum sporangium  Deciduous sporangium, photo from Q-bank, used with permission |
Comparative gametangial morphology of Phytophthora Clade 5 species  Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015). |
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P. cinnamomi cork oak decline  Red oak with embedded lesions, France |
P. tentaculata hyphae  Looping hyphae commonly seen with P. tentaculata on PARP media |
Austrocedrus associated with Mal del ciprés.  Austrocedrus with basal resin flow associated with Mal del ciprés. |
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Chlamydospore of P. lateralis  Terminal chlamydospore on a short side stalk |
P. cinnamomi sporangium  P. cinnamomi sporangium |
P. pluvialis on Pinus radiata  A Pinus radiata needle showing black resinous bands or marks consistent with the presence of red needle cast disease. |
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P. palmivora colony morphology on V8  Growth of P. palmivora on V8 agar |
P. austrocedrae necrotic lesion in phloem  P. austrocedrae - necrotic lesion in phloem |
P. pinifolia on Pinus radiata  Pinus radiata, note Infected needles at right angles to stem |