Bole lesion on Fagus sylvatica
Photo Gallery
|
P. kernoviae canker  |
P. nemorosa oogonium  Oogonium with amphigynous antheridium |
P. lateralis on Port Orford cedar  Bole lesion on Chaemacyparis lawsoniana in Lopérec, France |
|
P. pluvialis sporangium  Sporangium showing typical ovoid shape and semi-papillate condition |
Mal del ciprés, dead and dying trees along river  Mal del ciprés, dead and dying trees along river |
P. pinifolia on Pinus radiata  Pinus radiata, note Stem canker associated with necrotic needles. |
|
P. katsurae disease symptoms  Infected chestnut (Castanea) with bleeding canker |
P. kernoviae leaf wilt  Wilted leaf of infected rhododendron |
P. pluvialis symptoms on Douglas-fir  Red needle cast symptoms on Douglas-fir in western Oregon, 2015 |
|
P. alni canker on gray alder  Grey alder (A. incana) with collar rot caused by P. alni |
P. siskiyouensis bleeding canker  Bole lesions in the tissues under the bark of a bleeding canker: discoloration in the secondary phloem tissue |
Phytophthora cactorum disease symptoms on English walnut  Mortality of Juglans regia caused by Phytophthora cactorum. |