Pinus radiata needles, note “black line” symptom near needle bases
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P. pinifolia on Pinus radiata needles  |
P. pinifolia on Pinus radiata  Pinus radiata, note grey and collapsed needle bases |
P. pinifolia on Pinus radiata  Dead needles on lower side of P. radiata branch. |
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P. pinifolia on Pinus radiata  Pinus radiata, note Infected needles at right angles to stem |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
P. pinifolia sporangium  Cysts remain in sporangium after discharge, photo from Q-bank, used with permission |
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P. pinifolia sporangia  Sporangium with internal proliferation, photo from Q-bank, used with permission. |
P. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |
P. pinifolia sporangium  Non- papillate and caducous sporangia of Phytophthora pinifolia isolated from the infected P. radiata needles. |
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P. pinifolia hyphal swellings  Spherical hyphal swelling with radiating hyphae (from Duran et al. 2008). Scale bar = 20 μm. |