I had spider mites in flower on a photo grow. Not many products for flower stage. I hunted morning and evening for over a month, used several approved sprays dr zymes is all I recall at the moment. Removed leaves with bugs. I washed the buds after harvest. Hang dried 2 days, put in dry/cure machine, opened after a few days, and must have been over a hundred of them on the inside of the door. After vacuuming the carcasses out no more found. Assuming they vacate during the dry for lack of juice. Nasty critters. In hindsight I'd grade my efforts as a learning experience. Otherwise a waste of time imo. A lot more options in veg but in flower, never again.