P. alni lesion in alder, Illwald, France
Photo Gallery
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P. alni lesion in alder, Illwald, France  |
Basal canker on Port Orford Cedar stump  |
P. cambivora on dead and dying chinquapin  Dead and dying chinquapin infected with P. cambivora |
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P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
P. lateralis sporangia  Sympodial sporangiophore with external proliferation |
P. cambivora colony morphology on MA  Rosacous colony morphology at 14 days at 20°C on MA |
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P. pluvialis on Pinus radiata in New Zealand  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. |
P. katsurae sporangia  Papillate, non-caducous sporangium with differentiated content; photo used with permission from Q-bank |
P. chlamydospora sporangium  Phytophthora chlamydospora sporangium in water. Bar is 20µm. |
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Phytophthora taxon Agathis bole canker  Kauri tree in New Zealand with disease symptoms |
P. cinnamomi on Banksia  Gretna Weste injecting Banksia with phosphonate |
P. frigida sporangia  Noncaducous sporangia showing ovoid shape and papillate condition |