get a pyrethrum bombs and all your problems are gone...... they are extremely effective
Don't ever use any bug bomb. First of all they can and will burn the shit out of your plants. Second pyrethrum will indeed create super mites that other treatments that would effective can be considered ineffective.
Heres a method to keeping mites at bay.
1) Learn to clone and not get clones from the community.
2) Use effective miticides. (Forbid 4F, Shuttle O, Avid, Azamax, and Cold Pressed Neem Oil.)
3) Rotate those miticides.
4) Spray every 5 days regardless if you see mites.
5) Continue spraying at least a month after seeing last mite. (eggs keep hatching)
6) Keep ambient room temperatures below 75 F. (mites reproduce slower at cooler temps)
7) When plants are small (solo to 1 gallon pots) dip plants into a bucket of miticide for excellent coverage.
Lose the hand spray bottle and get a pump wand sprayer.
9) Between miticides spray clean cold water.
10) Although this could be hard for most it should be the easiest. Get rid of an infested plant(s). Losing few to save the many. Even if it's in flower. Could save a crop.