i had a mite infestation late into flowering years ago and a friend advised me to use my vacumn cleaner hose and gently suck em off...which i did and it worked! took all the webbing away too...everything but the eggs and some stragglers that hid well. but by far the majority were gone and without any pesticides or soap. i played around with it a bit and found if i used smoke (many sticks of incense in my case) it'll drive em out to the top and edges making it easier to suck em off the plant. then add some black flag or raid into the vacumn so they don't come back and your done for a few days...then repeat.