Ovoid, semi-papillate sporangia showing sympodial development of sporangiophore
Photo Gallery
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P. nemorosa sporangia  |
Boot wash to station to control spread of P. agathidicida  Use of hypochlorite solution applied through a “livestock drench-gun”, integrated with a soil grate to allow potentially contaminated soil to be collected |
P. cambivora sporangium  Ovoid non-papillate sporangia with well-rounded base and simple sporangiophore |
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P. pluvialis oogonium and antheridium  Oogonium and oospore with amphigynous antheridium |
Basal canker on Port Orford Cedar stump  |
P. pinifolia on Pinus radiata  Pinus radiata needles, note “black line” symptom near needle bases |
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P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
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. pinifolia sporangia  Sporangium with internal proliferation, photo from Q-bank, used with permission. |
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P. lateralis on Port Orford cedar  Typical decline of Chaemacyparis lawsoniana in Landrévarzec, France |
Necrotic lesion in phloem caused by P. austrocedrae  Necrotic lesion in phloem with resin pocket caused by P. austrocedrae |
P. cambivora sporangia  Empty sporangia of P. cambivora showing nested internal proliferation |