Three years ago I began fire mimicry treatments on a grove of very sick coast live oaks in Monterey, CA. the photos (above and below) indicate that most of the oaks have responded nicely, showing improvement in canopy density and lushness. Note that one severely diseased oak below (Case No. 20171202.6) had a surgery and cauterization procedure that appears to have been successful. At least for these trees, 2020 has ended on a positive note!
Sudden Oak Life 
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