Dieback and shoot blight symptoms caused by P. ramorum on Abies grandis
Photo Gallery
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P. ramorum Dieback and shoot blight on Grand fir  |
P. siskiyouensis disease symptoms on Italian alder  Grove of dying trees in a commercial landscape in Foster City, CA |
P. agathidicia oogonia  Light micrograph of P. agathidicida oospore (Scale bar equals 15 µm) |
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P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
P. pinifolia on Pinus radiata needles  Pinus radiata needles, note “black line” symptom near needle bases |
Growth of P. megakarya on PDA  Growth of P. megakarya on potato dextrose agar |
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P. palmivora sporangia, chlamydospores, hyphae  Sporangia (sporangiospores), chlamydospores, and hyphae stained with Cotton Blue |
P. austrocedrae colony morphology on Tomato juice agar  Colony morphology of P. austrocedrae at 16 ºC after 4 weeks on Tomato juice agar |
P. tentaculata disease symptoms on sticky monkey flower  Crown and root rot (left) on sticky monkey flower (Diplacus aurantiacus) compared with a control (right) |
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P. nemorosa oogonium  Oogonium with amphigynous antheridium |
P. austrocedrae colony morphology on PDA  Colony morphology of P. austrocedrae at 16 C after four weeks on PDA |
P. nemorosa colony morphology on PDA  Colony morphology on PDA at 14 days |