Hard to tell but mites would leave the leaves with white spots, which I don't necessarily see. The pic's suck, which makes it hard to tell. Mites don't eat leaves, which it seems to be part of your problem. It's probably a different insect of some sort.....if still in veg, you need maybe neem or Monteray insect spray to help but at this point, I'd probably kill everything off, clean everything well and start over.