A stand of Pinus radiata trees affected by red needle cast disease. Note that frequently only the lower part of the crown is affected.
Photo Gallery
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P. pluvialis on Pinus radiata in New Zealand  |
P. nicotianae oogonia  P. nicotianae oogonia 100x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. nemorosa sporangia  Ovoid, semi-papillate sporangia showing sympodial development of sporangiophore |
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P. tentaculata chlamydospore  Terminal chlamydospore of P. tentaculata |
P. kernoviae leaf wilt  Wilted leaf of infected rhododendron |
P. frigida oogonium  Oogonium and oospore with amphigynous antheridium |
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P. chlamydospora colony morphology on carrot agar  P. chlamydospora colony morphology on carrot agar |
P. lateralis on Port Orford cedar  Typical decline of Chaemacyparis lawsoniana in Landrévarzec, France |
P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
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P. lateralis sporangia  Sympodial sporangiophore with external proliferation |
P. nicotianae sporangia  P. nicotianae overview of sporangia 40x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |