Looks like thrips, the black dots may be thip-poo, the thrip larvae eat the leaves from the underside and the patches appear silver from the top. jalepeno & water or habenero & water (very weak) spray top of soil and undersides of leaves, try not to get on the buds. Do that every day for a week, they should not come back. or just ignore it and hope the crop makes it to its end (since they look fairly far along). If its mites? i dunno. I've never dealt with mites. Try turning your fans off and see if anything is flying around (adult thrips look like fruit flies), check underside of ALL the leaves (thrip larvae can be seen running round)