Bole lesions in the tissues under the bark of a bleeding canker: distinct margin between healthy and disease tissues
Photo Gallery
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P. siskiyouensis canker on Italian alder  |
P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |
P. nicotianae chlamydospore  Globose chlamydospore (Fitopatol. bras. 2005) |
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P. alni oogonia  Smooth-walled oogonium of P. alni (Swedish variant) with oospore and amphigynous antheridium. |
P. alni in riparian alder, Scotland  P. alni in riparian alder, Scotland |
P. cambivora disease symptoms  Crown symptoms of Ink disease on sweet chestnut |
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P. tentaculata disease symptoms on sticky monkey flower  Crown and root rot (left) on sticky monkey flower (Diplacus aurantiacus) compared with a control (right) |
Basal canker on Port Orford Cedar stump  |
P. ramorum canker  Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
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P. arenaria disease symptoms on Banksia landscape  Dead Banksia sp. in a Kwongan heathland on mineral sand near Eneabba, Western Australia recently killed by root and collar rot caused by Phytophthora arenaria |
P. cambivora sporangium with internal extended proliferation  Empty sporangia showing internal extended proliferation |
P. palmivora sporangia  Sporangia (sporangiospores) showing sympodial branching |