It looks like the bugs are spreading to the other trees. But so far only the one tree is loosing a lot of leaves. Ive got so many trees at this point I think Im just going to let nature run its course and see how it goes. From most of the research Ive done they aren't going to make it for very long based on how far inland I am and our sunset zone being heavily influenced by the desert.
The sunset zone maps for san diego county are pretty interesting. So many different sub climates that depend on elevation, distance from the ocean, wind patterns, valleys, etc.