Name: Susan Virginia (Zone 8a) God is the only thing that matters.
If it is mites you can just cut off the flower heads for now, but when they go dormant remove the dead stalks, and dispose or burn, because some parasitic mites will over winter in the dead stalks. (Eriophyid Mites)
Consider the lilies of the field, how they grow; they toil not, neither do they spin: And yet I say unto you, That even Solomon in all his glory was not arrayed like one of these. Mat.6:28-29