Red oak with embedded lesions, France
Photo Gallery
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P. cinnamomi cork oak decline  |
P. cambivora colony morphology on MA  Appressed stellate colony morphology at 14 days at 20°C on MA |
P. kernoviae oogonium  Oogonium with amphigynous antheridia, photo from Q-bank, used with permission |
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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. |
Phytophthora chlamydospora sporangium  Phytophthora chlamydospora sporangia in water, showing internal proliferation. Bar is 20 µm. |
P. cryptogea colony morpholgy on PDA  Colony morphology on PDA at 14 days |
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Phytophthora taxon Agathis bole canker  Canker on a Kauri tree, New Zealand |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
Dying Port Orford Cedar trees  Dead Chamaecyparis lawsoniana trees |
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P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
P. kernoviae disease on beech  External lesion; 14 November 2003 |
P. cambivora oogonium  Bullate oogonium and and two-celled amphigynous antheridium |