Bullate oogonium and and two-celled amphigynous antheridium
Photo Gallery
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P. cambivora oogonium  |
P. cambivora disease symptoms  Dead and dying chinquapin infected with P. cambivora |
P. tentaculata disease symptoms on California mugwort  Outplanted California mugwort (Artemisia douglasiana) infected with P. tentaculata, 4.5 years after planting. Plant shows stunting and chlorosis. (P. cryptogea and P. lacustris were also baited from roots/soil of this plant). |
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P. alni symptoms on European Alder  Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot. |
P. ramorum sporangium  P. ramorum sporangium |
P. pluvialis sporangia.  P. pluvialis sporangia on tape peel from infected Douglas-fir needle. |
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P. pinifolia on Pinus radiata  Dead needles on lower side of P. radiata branch. |
P. alni in riparian alder, Scotland  P. alni in riparian alder, Scotland |
P. tentaculata sporangium  Papillate sporangium of P. tentaculata |
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P. nicotianae chlamydospore  Globose chlamydospore (Fitopatol. bras. 2005) |
P. cinnamomi on Fraser fir  Frasier fir Christmas trees, North Carolina |
Phytophthora cactorum canker on beech tree  Canker on Fagus sp. caused by Phytophthora cactorum. |