Colony morphology on V8 at 14 days
Photo Gallery
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P. siskiyouensis colony morphology on V8  |
P. boehmeriae oogonia  Oogonia and oospores with amphigynous antheridia |
Phytophthora cactorum canker on beech tree  Canker on Fagus sp. caused by Phytophthora cactorum. |
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P. cryptogea hyphal swellings  Cluster of small, angular to globose hyphal swellings formed in water |
P. austrocedrae semipapillate sporangium  P. austrocedrae - semipapillate sporangium with off-center attachment. |
P. kernoviae leaf wilt  Necrosis of rhododendron leaves. |
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P. cambivora colony morphology on PDA  Cottony colony morphology at 14 days at 20°C on PDA |
P. ramorum sporangium  Deciduous sporangium, photo from Q-bank, used with permission |
P. pseudotsugae paragynous oogonium  P. pseudotsugae oogonium with paragynous antheridia, note the disrupted contents of the abortive oogonia |
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P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
P. siskiyouensis canker on Italian alder  Bleeding canker at the base of a tree and a sprinkler emitter (arrow) adjacent to the trunk |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |