Predatory mites??

[akane]

You just need a small container of moist dirt added to an enclosure with the predatory mite culture in it. The mites will spread where there is food. The mites even spread from the glass tanks through my house to kill a rodent mite infestation the wild mice brought in. It was a horribly heavy infestation of large tropical rat mites even in the walls and ceilings and one day after I setup my bioactive tanks full of visible mites in the soil all harmful mites were gone. We'd even spread things to dry out and kill mites across the floors and rodent cages. However, I cannot attest to what species I had. There is more than one. Some sources will sell a mix of several. I'm not sure how they compare in hardiness and activity to my native mites. People who have used the method in bins and know what they ordered would have to help there.