I would be careful to identify the "mite" that the spray is intended to
kill and then look at the family etc.  Quite often the label "mite" is
fairly inaccurate, scientifically, as any small pest may be a "mite."
 
Sprays kill insects in various ways.  It is wise to understand how Kelthane
works... does it depend on the offending mite ingesting sprayed plant
material?  Would honey bees act like sprayed plant material and yield
poison in the right doses to biting varroa?  Or is the spray topical and
dependent upon mites walking on it?  Would you have to spray allinfected
bees?
 
It is wise to look at what families the insects are from, their feeding
habits and morphology etc., and how the spray works (skin entry, ingestion
etc.) before even guessing at whether it might be of any help.  As I
recall(Ag degree circa 1979), Kelthane has a three day waiting period
before entering the field after spraying... bad stuff.
 
aloha,
 
mike moriarty