P. alni in riparian alder, Scotland
Photo Gallery
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P. alni in riparian alder, Scotland  |
P. frigida sporangia  Noncaducous sporangia showing ovoid shape and papillate condition |
Growth of P. arenaria on CA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on carrot agar |
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P. pinifolia sporangium  Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles. |
P. pseudotsugae colony morphology on PDA  P. pseudotsugae colony growth on PDA agar |
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. cambivora colony morphology on MA  Appressed colony morphology at 14 days at 20°C on MA |
P. cambivora symptoms  P. cambivora on Fagus sylvatica bole |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
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P. austrocedrae hyphal swellings in liquid media drawing  Morphology of hyphae of Phytophthora austrocedrae, from Greslebin et al. 2007 |
P. nemorosa hyphal swellings  ‘Blistered’ hyphal swellings in agar |
P. lateralis sporangia  Sympodial sporangiophore with external proliferation |