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).
Photo Gallery
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P. tentaculata disease symptoms on California mugwort  |
P. austrocedrae - necrotic lesion in phloem  |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
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P. nicotianae colony morphology on CMA  Phytophthora nicotianae CBS 321.49 CMA after 7 days at 24 degrees. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
Growth of P. megakarya on V8 agar  Growth of P. megakarya on V8 agar |
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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P. megakarya sporangia (photo from Q-bank, used with permission).  P. megakarya sporangia |
P. cambivora disease symptoms  Dead and dying chinquapin infected with P. cambivora |
P. pinifolia on Pinus radiata  Pinus radiata, note Infected needles at right angles to stem |
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P. arenaria hyphal swellings  Catenulate, globose to subglobose hyphal swellings, some of them with radiating hyphae scale bar = 50 μm. |
P. siskiyouensis disease symptoms on Italian alder  Grove of dying trees in a commercial landscape in Foster City, CA |
P. kernoviae colony morphology  From Mycol.Res 109, 853-859; growth on CA under different conditions |