Phytophthora collar rot on Italian alder trees: an isolated bleeding canker on the trunk
Photo Gallery
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P. siskiyouensis canker on Italian alder  |
P. cambivora sporangium with sympodial proliferation  Empty sporagium showing sympodial proliferation |
P. nicotianae oogonia  P. nicotianae oogonia 100x. Photo from Q-bank: www.q-bank.eu, Henk Brouwer (CBS-KNAW, Utrecht, The Netherlands) |
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P. cinnamomi on Banksia  Gretna Weste injecting Banksia with phosphonate |
P. kernoviae disease on European beech  Bleeding lesion on trunk of Fagus sylvatica |
P. megasperma sporangia  Ovoid, non-papillate sporangia showing internal proliferation of sporangiophore |
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P. nicotianae symptoms  Symptoms of gummosis on black wattle (Fitopatol. bras. 2005) |
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  Dying Chaemacyparis lawsoniana trees in Lopérec, France. |
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P. pinifolia colony morphology on PDA  Colony pattern after 7 days on PDA at 24C, photo from Q-bank, used with permission. |
P. tentaculata oogonia and antheridia  Oospores and oogonia with mostly paragynous but some amphigynous antheridia of P. tentaculata |
P. ramorum sporangium  Deciduous sporangium, photo from Q-bank, used with permission |