Pinus radiata stand, note Defoliation and regrowth
Photo Gallery
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P. pinifolia on Pinus radiata  |
P. cinnamomi cork oak decline  Cork oak decline, Portugal |
P. agathidicida oospores in planta  Oospores in the roots of kauri seedlings inoculated with P. agathidicida. The root has been cleared with potassium hydroxide and bleached with peroxide before being stained with trypan blue (scale bar =100 µm). |
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Austrocedrus associated with Mal del ciprés.  Austrocedrus with basal resin flow associated with Mal del ciprés. |
P. cinnamomi cork oak decline  Cork oak decline, Portugal |
P. cinnamomi hyphal swelling  P. cinnamomi hyphal swelling (or thin walled chlamydospores) |
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Phytophthora cactorum canker on beech tree  Canker on Fagus sp. caused by Phytophthora cactorum. |
P. pluvialis on Pinus radiata in New Zealand  Lesions consistent with the presence of red needle cast disease are more abundant at the base of Pinus radiata needles as indicated by the arrow. |
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. palmivora colony morphology on V8  Growth of P. palmivora on V8 agar |
P. cambivora sporangium  Ovoid non- papillate sporangia |
Growth of P. arenaria on V8  Colony morphology of Phytophthora arenaria after 7 days at 20°C on V8 agar |