Canker on Fagus sp. caused by Phytophthora cactorum.
Photo Gallery
|
Phytophthora cactorum canker on beech tree  |
P. cactorum bleeding canker  Bleeding canker on red oak (Quercus rubra) |
P. cactorum sporangium  P. cactorum sporangium |
|
P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |
P. cactorum oogonium  Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
Phytophthora cactorum disease symptoms on English walnut  Dieback of Juglans regia caused by Phytophthora cactorum |
|
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
P. cactorum sporangia  P. cactorum sporangia |
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
|
P. cactorum bleeding canker  Bleeding canker on European beech (Fagus sylvatica) |
P. cactorum colony morphology on PDA  Colony morphology on PDA at 14 days |
P. cactorum sporangia  Broadly ovoid, papillate sporangia in water. |