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. cinnamomi on Jarrah  Dieback in Jarrah, Western Australia |
P. siskiyouensis disease symptoms on Italian alder  Phytophthora collar rot on Italian alder trees: standing, dead tree |
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P. katsurae disease symptoms  Infected chestnut (Castanea) with bleeding canker |
P. pseudosyringae sporangium  Ovoid, semipapillate sporangia showing medium length pedicel |
P. pinifolia hyphal swellings  Spherical hyphal swelling with radiating hyphae (from Duran et al. 2008). Scale bar = 20 μm. |
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P. ramorum colony morphology on CMA PARP  P. ramorum colony morphology on CMA PARP |
Basal canker on Port Orford Cedar stump  |
P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
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P. cryptogea hyphal swellings  Cluster of small, angular to globose hyphal swellings formed in water |
P. nemorosa colony morphology on V8  Colony morphology on V8 at 14 days |
Growth of P. arenaria on MEA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on malt extract agar |