P. palmivora oogonia with antheridia
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P. palmivora oogonia |
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). |
P. cambivora colony morphology on PDA Rosaceous colony morphology at 14 days at 20°C on PDA |
P. cactorum sporangia Broadly ovoid, papillate sporangia in water. |
P. alni canker on gray alder Grey alder (A. incana) with collar rot caused by P. alni |
P. austrocedrae colony morphology on PDA Colony morphology of P. austrocedrae at 16 C after four weeks on PDA |
P. cambivora oogonium P. cambivora oogonium with antheridium |
P. pluvialis oogonium and antheridium Oogonium and oospore with amphigynous antheridium |
P. pluvialis symptoms Symptoms of red needle cast on Douglas-fir needles |
Chlamydospore of P. lateralis Terminal chlamydospore on a short side stalk |
P. chlamydospora hyphal swellings Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm.
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P. megakarya disease symptoms on Theobroma cacao fruit Disease symptoms on a cocoa pod |