Sporangium with distorted shape, photo from Q-bank, used with permission.
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P. austrocedrae - sporangia  |
P. ramorum canker  Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
P. cambivora colony morphology on MA  Appressed stellate colony morphology at 14 days at 20°C on MA |
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P. alni in alder, Illwald, France  P. alni in alder, Illwald, France |
P. pinifolia on Pinus radiata  Pinus radiata impacted by DFP, note healthy new growth |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
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P. cinnamomi cork oak decline  Cork oak decline, Portugal |
P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
P. tentaculata disease symptoms on California mugwort  Nursery grown California mugwort plant (Artemisia douglasiana) infected with P. tentaculata and exhibiting severe root and crown rot |
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Mat to control spread of P. agathidicida  Jogger running over a plastic-reinforced, foam-mat containing a 2% solution of Trigene™ Advance (quaternary ammonium compound) as part of a cross-country event, in the Waitakere Regional Park |
P. katsurae disease symptoms  Infected chestnut tree with girdling canker on stem |
Black pod disease of cacao caused by P. palmivora  Black pod of cacao in Ecuador caused by P. palmivora (see lesioned fruit on left). |