I had a mite problem. I had them real real bad. They are like tiny dots, which move around on you plant, seriously the size of a spec. When I would check my trichomes for color, I would see them under mag, and shit they are ugly little bastards. They mess up the leaves, which if your problem is bad, it should look like the leaves i posted below. Hope this helps. Heat will make them produce much faster. Kill them, dont let them build up, cus it gets insane.