avid and floramite are very expensive and are for ornamentals, mighty wash works, but as stated, you need to stay on top of them, one spray will NOT rid you of them. you are going to war and you need an arsenal, not just a machine gun.
fox farms 'don't bug me" is a liquid pyrethran and is great for thrips, just not for mites. using azamax,mighty wash,no pest strips, hot pepper spray, you might have a chance of ridding them, but it is my understanding, once you have them, you always have them, you just need to keep them under control. I am going to try out some natural predators and see what results they give.http://www.benemite.com/