The Pepper spray method will eliminate most of the pest but there will always be a few of em left to repopulate ( same with liquid ladybug ). these method are still very useful if you discover your infestation too late to use chemical cause you can't use Floramite & other chimical on your bud you would poison them & anyone who would smoke them. Neem oil use to be a all around cure, unfortunately many spider mites have adapted to survive it . When you see spider mites webs on your plants you have a major infestation even if you don't see them right now . Use a 30x magnifier & check underneath your leafs you should see these little pest & their eggs. There is no cheap cure for spider mites Floramites sc, Forbid 4f & Hexygon DF the 3 working product i know are very pricey