You may not believe it, but I am actually glad to have spider mites. That is what the official diagnosis was on our Pacific Coast Live Oaks. The alternative for the browned out oak seen to the left was sudden oak death.
With diagnosis in hand, we had ArborWell out to spray the trees (3 dozen) in the parking lot and on the entrance road. After a month, some trees still look browned out, but if you look close you'll notice green leaves reappearing at the ends of the branches. Something you also notice is the lack of brown lesions on the top side of the leave which is indicative of the spider mite damage.
When reading the disease report, the report mentions that while spider mites are a problem, damage like we have is not typical. I kindly responded, "Only at Cinnabar".