Sub-globose hyphal swellings in water
Photo Gallery
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P. pseudosyringae hyphal swellings  |
P. tentaculata hyphae  Looping hyphae commonly seen with P. tentaculata on PARP media |
P. tentaculata disease symptoms on California mugwort  Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot |
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P. frigida chlamydospore  Globose chlamydospores of P. frigida |
P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
P. cambivora disease symptoms  Dead and dying chinquapin infected with P. cambivora |
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P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |
P. tentaculata sporangium  Papillate sporangium of P. tentaculata with an elongated neck or beak. |
P. pluvialis on Pinus radiata in New Zealand  A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion. |
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Necrotic lesion in phloem caused by P. austrocedrae  Necrotic lesion in phloem with resin pocket caused by P. austrocedrae |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
P. cinnamomi on Fraser fir  Frasier fir Christmas trees, North Carolina |