Symptoms of red needle cast on Douglas-fir needles
Photo Gallery
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P. pluvialis symptoms  |
P. kernoviae sporangium  Asymmetrical sporangium, photo from Q-bank, used with permission |
P. alni symptoms on European Alder  Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot. |
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P. megakarya disease symptoms on Theobroma cacao
Symptoms of black pod disease of cocoa (T. cacao)
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P. cryptogea sporangium  Obpyriform non-papillate sporangia in water |
P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
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P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
P. alni basal canker on European Alder  P. alni basal canker on European Alder (Alnus glutinosa) |
P. pinifolia on Pinus radiata  Pinus radiata needles, note “black line” symptom near needle bases |
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P. megakarya oospore
P. megakarya oogonia, oospore, and antheridium
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P. tentaculata chlamydospore  P. tentaculata chlamydospore with short hyphal projection |
P. cryptogea sporangium  Ovoid non-papillate sporangia in water. |