I had bought some roach jelly from Bugs In Cyber Space. I saw the mites in one of my roach homes had crammed themselves in to one so I took it out ajd put it in the freezer. Two days later, all dead! Its a good treqt and a mite bait too. Cant beat that.
To work though, its best to remove all food from thier home so if the mites want something to eat, they have to go into the jelly cups.