Photo Gallery

P. pluvialis on Pinus radiata in New Zealand A stand of Pinus radiata trees affected by red needle cast disease. Note that frequently only the lower part of the crown is affected.	P. pluvialis symptoms on Douglas-fir needles Symptoms of red needle cast on Douglas-fir needles	P. pluvialis on Pinus radiata in New Zealand 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.
P. pluvialis oogonium and antheridium Oogonium and oospore with amphigynous antheridium	P. pluvialis sporangia. P. pluvialis sporangia on tape peel from infected Douglas-fir needle.	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. pluvialis colony morphology on carrot agar Colony morphology on carrot agar at 20 days	P. pluvialis on Pinus radiata needle Clusters of sporangia emerge from stomata of an infected radiata pine needle.	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. pluvialis oogonium and antheridium Oogonium and oospore with amphigynous antheridium	P. pluvialis on Pinus radiata in New Zealand Pinus radiata needles showing colour changes following infection with red needle cast disease. The tissues around the initial infection at the base or along the needle senesce, and change yellow and then brown as indicated by the arrows before the needles cast.	P. pluvialis on Pinus radiata in New Zealand 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.