Lesions consistent with the presence of red needle cast disease are more abundant at the base of Pinus radiata needles as indicated by the arrow.
Photo Gallery
|
P. pluvialis on Pinus radiata in New Zealand  |
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
P. agathidicida lesion on kauri tree  Gum oozing out of longitudinal lesion |
|
P. cambivora sporangia  Empty sporangia of P. cambivora showing nested internal proliferation |
P. kernoviae leaf wilt  Wilted leaf of infected rhododendron |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
|
P. lateralis colony morphology on PDA  Growth morphology on PDA of Phytophthora lateralis |
Growth of P. arenaria on half-strength PDA  Colony morphology of Phytophthora arenaria after 7 days at 20°C on half-strength PDA |
P. agathidicia oogonia  P. agathidicida oogonia with SEM (top) and light microscopy (bottom) |
|
P. ramorum canker  Bark discoloration and zone lines in coast live oak (Quercus agrifolia) |
Comparative gametangial morphology of Phytophthora Clade 5 species  Comparative gametangial morphology of Phytophthora Clade 5 species, with SEM (top) and light microscopy (bottom). P. heveae has smooth walled oogonia with funnel-shaped, amphigynous antheridia. P. agathidicida has mildly stipulate oogonia with globose amphigynous antheridia. P.cocois has mildly bullate oogonia with reflexed amphigynous antheridia. P. castaneae has coarsely bullate oogonium with rugose protuberances and narrow amphigynous antheridia (Weir et al. 2015). |
P. cambivora symptoms  P. cambivora on Fagus sylvatica bole |