Typical red needle cast symptoms along a twig. Lesions begin at the base of the needle which subsequently turns brown and is cast from the twig.
Photo Gallery
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P. pluvialis on Pinus radiata in New Zealand  |
P. megasperma sporangia  Ovoid, non-papillate sporangia showing internal proliferation of sporangiophore |
P. ramorum colony morphology on V8  P. ramorum colony morphology on V8 |
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P. alni sporangia  Non-papillate sporangia of P. alni showing nested proliferation. |
P. cambivora sporangium with internal extended proliferation  Empty sporagia showing internal nested and extended proliferation |
P. cambivora disease symptoms  Collar canker rot of Ink disease on sweet chestnut |
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P. tentaculata oogonia and antheridia  Oospores and oogonia with mostly paragynous but some amphigynous antheridia of P. tentaculata |
Chlamydospore of P. lateralis  Laterally intercalary chlamydospore of Phytophthora lateralis |
P. palmivora oogonium  P. palmivora oogonium |
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P. austrocedrae - sporangia drawings  Phytophthora austrocedrae. Morphology of sporangia. Bar: 25 mm. Greslebin et al. 2007 |
P. cinnamomi on Jarrah  Dieback in Jarrah, Western Australia |
P. kernoviae disease on beech  External lesion; 14 November 2003 |