Symptoms of red needle cast on Douglas-fir needles
Photo Gallery
P. pluvialis symptoms on Douglas-fir needles |
P. arenaria disease symptoms on Banksia Dead Banksia sp. in a Kwongan heathland on mineral sand near Eneabba, Western Australia recently killed by root and collar rot caused by Phytophthora arenaria |
P. cambivora sporangium Ovoid non-papillate sporangia with well-rounded base |
P. pseudotsugae colony morphology on PDA P. pseudotsugae colony growth on PDA agar |
P. pinifolia on Pinus radiata Pinus radiata needles, note “black line” symptom near needle bases |
P. ramorum colony morphology on PDA P. ramorum colony morphology on PDA |
P. pluvialis on Pinus radiata A Pinus radiata needle showing black resinous bands or marks consistent with the presence of red needle cast disease. |
P. kernoviae sporangia Mycol.Res 109, 853-859; Figs 18-22. Regular, ovoid limoniform sporangia. Figs 23-26. Asymmetrical or sporangia |
P. cactorum bleeding canker Bleeding canker on red oak (Quercus rubra) |
P. arenaria oogonium Aplerotic oogonia of P. arenaria with paragynous antheridia. Scale bar = 20 μm |
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. siskiyouensis canker on Italian alder Bole lesions in the tissues under the bark of a bleeding canker: distinct margin between healthy and disease tissues |