Bleeding canker on red oak (Quercus rubra)
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P. cactorum bleeding canker  |
P. ramorum canker  Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
P. cambivora older hyphae  Old septate hyphae |
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P. arenaria disease symptoms on Banksia  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. pinifolia on Pinus radiata  Pinus radiata, note grey and collapsed needle bases |
Basal canker on Port-Orford cedar  Basal canker on Chamaecyparis lawsoniana |
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P. pluvialis hyphal swellings  P. pluvialis hyphal swellings on agar |
Phytophthora cactorum disease symptoms on English walnut  Dieback of Juglans regia caused by Phytophthora cactorum |
P. alni lesion in alder, Illwald, France  P. alni lesion in alder, Illwald, France |
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P. pinifolia on Pinus radiata  Pinus radiata needles, note “black line” symptom near needle bases |
P. pinifolia on Pinus radiata  Pinus radiata impacted by DFP, note healthy new growth |
Healthy Port Orford Cedar tree  Healthy Chamaecyparis lawsoniana tree |