P. alni in riparian alder, Scotland
Photo Gallery
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P. alni in riparian alder, Scotland  |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
P. palmivora sporangia  Sporangia (sporangiospores) showing sympodial branching |
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P. kernoviae disease on beech  External lesion; 14 November 2003 |
Basal canker on Port Orford Cedar stump  |
P. siskiyouensis sporangium  P. siskiyouensis sporangium with lateral semi-papilla and subterminal, sub-basal insertion in the sporangiophore |
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P. pluvialis on Pinus radiata in New Zealand  A stand of Pinus radiata trees affected by red needle cast disease. Note that frequently only the lower part of the crown is affected. |
Dying Port Orford Cedar trees  |
Dead Port Orford Cedar trees  Dead Chamaecyparis lawsoniana trees along road |
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P. frigida oogonium  Oogonium and oospore with amphigynous antheridium |
P. siskiyouensis disease symptoms on Italian alder  Phytophthora collar rot on Italian alder trees: standing, dead tree |
P. ramorum sporangium  P. ramorum sporangium |