Tufted appearance of new growth from surviving buds on Douglas-fir, one year after defoliation.
Photo Gallery
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P. pluvialis - appearance of new growth  |
P. pinifolia on Pinus radiata  Pinus radiata, note grey and collapsed needle bases |
P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
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P. cambivora disease symptoms  Dead and dying chinquapin infected with P. cambivora |
P. kernoviae oogonium  Oogonium with amphigynous antheridia, photo from Q-bank, used with permission |
P. arenaria hyphal swellings  Catenulate, globose to subglobose hyphal swellings, some of them with radiating hyphae scale bar = 50 μm. |
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P. cinnamomi cork oak decline  Red oak with embedded lesions, France |
P. ramorum zoospores  Sporangium of P. ramorum releasing zoospores |
Phytophthora cactorum disease symptoms on English walnut  Dieback of Juglans regia caused by Phytophthora cactorum |
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P. pseudotsugae amphigynous oogonium  P. pseudotsugae oogonium with amphigynous antheridia |
P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |
P. chlamydospora chlamydospore  Phytophthora chlamydospora chlamydospore in agar. Bar is 20µm. |