Rosacous colony morphology at 14 days at 20°C on MA
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P. cambivora colony morphology on MA |
P. cryptogea colony morpholgy on PDA Colony morphology on PDA at 14 days |
P. frigida sporangia Noncaducous sporangia showing ovoid shape and papillate condition |
P. cambivora sporangium with internal extended proliferation Empty sporangia showing internal extended proliferation |
P. cambivora colony morphology on V8 Colony morphology on V8 at 14 days |
P. ramorum canker Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
P. cambivora on dead and dying chinquapin Dead and dying chinquapin infected with P. cambivora |
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). |
Growth of P. megakarya on PDA Growth of P. megakarya on potato dextrose agar |
P. ramorum chlamydospores P. ramorum chlamydospores |
P. nemorosa hyphal swellings ‘Blistered’ hyphal swellings in agar |
P. siskiyouensis canker on Italian alder Bleeding canker at the base of a tree and a sprinkler emitter (arrow) adjacent to the trunk |