Spherical hyphal swelling with radiating hyphae (from Duran et al. 2008). Scale bar = 20 μm.
Photo Gallery
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P. pinifolia hyphal swellings  |
Necrotic lesion in phloem caused by P. austrocedrae  Necrotic lesion in phloem with resin pocket caused by P. austrocedrae |
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
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Black pod disease of cacao caused by P. palmivora  Black pod of cacao in Ecuador caused by P. palmivora (see lesioned fruit on left). |
P. boehmeriae oogonium  Oogonia and oospores with amphigynous antheridia |
P. lateralis on Port Orford Cedar  Horticultural planting of Port-Orford cedar, photo from USDA Forest Service, Dorena Genetic Resource Center |
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P. cinnamomi cork oak decline  Red oak with embedded lesions, France |
P. kernoviae sporangia  Mycol.Res 109, 853-859; Figs 18-22. Regular, ovoid limoniform sporangia. Figs 23-26. Asymmetrical or sporangia |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
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P. alni symptoms on European Alder  Mature, riparian common alder (A. glutinosa) stand with high impact of Phytophthora root and collar rot. |
P. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |