Infected chestnut tree with girdling canker on stem
Photo Gallery
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P. katsurae disease symptoms  |
P. cambivora colony morphology on MA  Appressed colony morphology at 14 days at 20°C on MA |
P. alni canker on gray alder  Grey alder (A. incana) with collar rot caused by P. alni |
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Phytophthora cactorum canker on beech tree  Canker on Fagus sp. caused by Phytophthora cactorum. |
P. pinifolia on Pinus radiata  Pinus radiata needles, note “black line” symptom near needle bases |
P. kernoviae leaf wilt  Necrosis of rhododendron leaves. |
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P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
P. cambivora sporangium  Ovoid non-papillate sporangia with well-rounded base |
P. cambivora oogonium  P. cambivora oogonium with antheridium |
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P. alni in riparian alder, Germany  P. alni in riparian alder, Germany |
P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |
Basal canker on Port-Orford cedar  Basal canker on Chamaecyparis lawsoniana |