slowthestone:
Did you change your avitar? I like it.
About chilling stuff to kill mites. I am not an expert about this but this is my belief based on things I have read: You can drastically slow down the mite problem by lowering temps. The lower the better. As far as I know though, you can't kill them unless you lower the temps to freezing or below.
Of course lowering temps drastically slows down the weed growth also, and freezing would kill the plants. I don't know for sure if freezing would kill seeds. Anyone?