A Pinus radiata needle showing faded olive- or khaki- coloured lesions consistent with the presence of red needle cast disease. Arrow shows resinous bands within the extended olive lesion.
Photo Gallery
|
P. pluvialis on Pinus radiata in New Zealand  |
P. palmivora oogonia  P. palmivora oogonia with antheridia |
P. pluvialis on Pinus radiata in New Zealand  A stand of Pinus radiata trees affected by red needle cast disease. Note the reddish appearance of affected trees prior to needle drop. |
|
P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
P. frigida symptoms 4  Black wattle timber with symptoms of gummosis |
P. pinifolia hyphal growth  P. pinifolia pathogen growing from infected needle on selective agar |
|
Phytophthora chlamydospora sporangium  Phytophthora chlamydospora sporangia in water, showing internal proliferation. Bar is 20 µm. |
P. palmivora chlamydospore  Terminal chlamydospore of P. palmivora |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
|
P. ramorum colony morphology on CMA PARP  P. ramorum colony morphology on CMA PARP |
P. cactorum sporangia  P. cactorum sporangia |
Sporangia showing ovoid and ovoid to spherical shape and papillate condition sporangia  Sporangia showing ovoid and ovoid to spherical shape and papillate condition |