Diffuse, non-patterned, colony morphology of ICMP 16471 (the original “Gadgil isolate”) after 10-days incubation at 20°C in the dark
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P. agathidicida growth on CMA |
P. pluvialis symptoms on Douglas-fir Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
P. cambivora colony morphology on PDA Colony morphology on PDA at 14 days |
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P. agathidicia oogonia Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |
P. pinifolia on Pinus radiata Pinus radiata stand, note Defoliation and regrowth |
P. pluvialis symptoms on Douglas-fir Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
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P. pinifolia on Pinus radiata Pinus radiata needles, note “black line” symptom near needle bases |
P. kernoviae leaf wilt Wilted leaf of infected rhododendron |
P. cambivora colony morphology on PDA Uniform fluffy colony morphology at 14 days at 20°C on PDA |
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P. pinifolia on Pinus radiata Pinus radiata, note Stem canker associated with necrotic needles. |
P. siskiyouensis sporangia Sporangia showing a variety of shapes and orientations of semi-papillae and sporangiophores |
P. chlamydospora chlamydospore Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |


