Colony morphology on V8 at 14 days
Photo Gallery
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P. pseudosyringae colony morphology on V8  |
P. siskiyouensis disease symptoms on Italian alder  Phytophthora collar rot on Italian alder trees: standing, dead tree |
P. cambivora sporangia  Empty sporangia of P. cambivora showing nested internal proliferation |
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P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. kernoviae disease on European beech  Bleeding lesion on trunk of Fagus sylvatica |
Dead Port Orford Cedar  Dead Chamaecyparis lawsoniana, BLM Roseburg District in Oregon |
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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. agathidicida sporangium  Globose to ovoid-ellipsoid, papillate sporangium |
P. cambivora colony morphology on V8  Colony morphology on V8 at 14 days |
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Basal canker on Port Orford Cedar stump  |
Boot wash to station to control spread of P. agathidicida  Use of hypochlorite solution applied through a “livestock drench-gun”, integrated with a soil grate to allow potentially contaminated soil to be collected |
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). |