A stand of Pinus radiata trees affected by red needle cast disease. Note the reddish appearance of affected trees prior to needle drop.
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P. pluvialis on Pinus radiata in New Zealand  |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
Stain from Port Orford Cedar root disease  Stain from Chamaecyparis lawsoniana root disease on the Smith River |
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P. pluvialis sporangium  Sporangium showing typical ovoid shape and semi-papillate condition |
P. austrocedrae irregular sporangium  P. austrocedrae - irregular sporangium with lateral attachment and swelling in sporangiophore |
P. megasperma oogonium  Oogonium with paragynous antheridia applied close to the ogonial stalk. |
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P. austrocedrae - Mal del ciprés, stages of decline  Mal del ciprés, stages of decline |
P. pinifolia hyphal swellings  Spherical hyphal swelling with radiating hyphae (from Duran et al. 2008). Scale bar = 20 μm. |
P. kernoviae sporangium  Papillate and caducous sporangium, photo from Q-bank, used with permission |
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P. lateralis colony morphology on PDA  Growth morphology on PDA of Phytophthora lateralis |
P. pseudotsugae amphigynous oogonium  P. pseudotsugae oogonium with amphigynous antheridia |
P. cambivora sporangium with sympodial proliferation  Empty sporagium showing sympodial proliferation |