Canker on Fagus sp. caused by Phytophthora cactorum.
Photo Gallery
Phytophthora cactorum canker on beech tree |
P. cactorum oogonium Oogonium with paragynous antheridia close to oogonial stalk. Oospores are slightly aplerotic. |
P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica) |
P. cactorum bleeding canker Bleeding canker on red oak (Quercus rubra) |
P. cactorum sporangia Broadly ovoid, papillate sporangia in water. |
P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica) |
P. cactorum colony morphology on V8 Colony morphology on V8 at 14 days |
P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica) |
P. cactorum sporangia P. cactorum sporangia |
P. cactorum sporangia Broadly ovoid, papillate sporangia in water. |
P. cactorum bleeding canker Bleeding canker on European beech (Fagus sylvatica) |
Phytophthora cactorum disease symptoms on English walnut Mortality of Juglans regia caused by Phytophthora cactorum. |