Colony morphology of Phytophthora arenaria after 7 days at 20°C on malt extract agar
Photo Gallery
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Growth of P. arenaria on MEA  |
P. kernoviae oogonium  Oogonium with amphigynous antheridia, photo from Q-bank, used with permission |
P. agathidicida lesion on kauri tree  Close up of gum oozing out of lower trunk lesions of a young kauri tree at Maungaroa Ridge, Piha region of Waitakere Regional Park |
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Dying Port Orford Cedar trees  Dead Chamaecyparis lawsoniana trees |
Chlamydospore of P. lateralis  Laterally intercalary chlamydospore of Phytophthora lateralis |
P. ramorum colony morphology on V8  P. ramorum colony morphology on V8 |
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P. lateralis on Port Orford cedar  Bole lesion on Chaemacyparis lawsoniana in Lopérec, France |
Phytophthora cactorum disease symptoms on English walnut  Mortality of Juglans regia caused by Phytophthora cactorum. |
P. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |
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P. agathidicia sporangia  Differentiation of the cytoplasm within papillate sporangia into acid fuchsin stained zoospores |
P. austrocedrae - Mal del ciprés, stages of decline  Mal del ciprés, stages of decline |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |