A stand of Pinus radiata trees affected by red needle cast disease. Note the reddish appearance of affected trees prior to needle drop.
Photo Gallery
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P. pluvialis on Pinus radiata in New Zealand  |
P. siskiyouensis sporangia  Sporangia showing a variety of shapes and orientations of semi-papillae and sporangiophores |
P. cambivora colony morphology on PDA  Rosaceous colony morphology at 14 days at 20°C on PDA |
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P. ramorum oogonium  Oogonium with thick oogonial wall, photo from Q-bank, used with permission |
P. cinnamomi colony morphology on PDA  P. cinnamomi colony growth on PDA at 14 days |
P. palmivora chlamydospore  Terminal chlamydospore of P. palmivora |
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P. cambivora oogonium  Bullate oogonium and and two-celled amphigynous antheridium |
P. siskiyouensis disease symptoms on Italian alder  Grove of dying trees in a commercial landscape in Foster City, CA |
Healthy Port Orford Cedar tree  Healthy Chamaecyparis lawsoniana trees |
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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). |
P. lateralis on Port Orford cedar  Root lesions on Chaemacyparis lawsoniana |
P. austrocedrae hyphal swellings  Hyphal swelling photo used with permission from Q-bank |