I think you may have spider mites. I notice you are in N. California where it is hot & dry now & that's just the perfect conditions for spider mites. Look on the underside of the leaves & see if you find anything looking like very fine webbing.
Check out these links: http://www.ipm.ucdavis.edu/PMG... http://www.ipm.ucdavis.edu/PMG...
I am a strong believer in the simple fact is that what matters in this life is how we treat others. I think that's what living is all about. Not what I've done in my life but how I've treated others. ~~ Sharon Brown
