saw this sudden oak death on a tree on campus.
Blackened, weeping cracks in the bark, some crown death, no sign of Hypoxylon or beetle infestation yet. SOD is pretty well-established in this park, sadly.
I found an instance of phytophthora ramorum growing on the bark of a Coast Live Oak on the UC Berkeley campus. This affliction causes sudden oak death and is quite prevalent on the Western United States.
I found an instance of phytophthora ramorum growing on the bark of a Coast Live Oak on the UC Berkeley campus. This affliction causes sudden oak death and is quite prevalent on the Western United States.
Orange jelly like substance on downed wood.
"Oomycota or oomycetes (oömycetes) form a distinct phylogenetic lineage of fungus-like eukaryotic microorganisms. They are filamentous, microscopic, absorptive organisms that reproduce both sexually and asexually" (Wikipedia)
see mt si april 28 journal entry for habitat
on Shepherd's-purse (Capsella bursa-pastoris)
