Alcohol will not rid you of mites and does a number on your plants if used often. Neem oil is a fricken mess and just plain sucks. Ladybugs will die off before the mites will. Use Forbid or Floramite. Both work great for getting rid of mite infestations. Do not use Floramite on plants that are within 3 weeks of harvest though. They are both expensive as hell, but you can buy them on ebay by the ounce.