The weasel thing scares me. Our neighbor had them years back so they must be around. We have some large holes in the same area of the coop. They were there before the chickens. So I put our game camera out above the main hole and I got a pic of a nose which was pointed like a weasel, but maybe it is just a rat. I keep telling myself that but the dang holes can be tennis ball sized. Still, no loss from a weasel. Does DE help w/ your mites or do you need to go bigger ?