A week (7) days. Wild birds can introduce mites into your coops, if they can get in. I think that's how my coop got infested originally.I just sprayed my coops yesterday, not because I suspect mites, but because I keep reading on here that everyone has mites.I don't remember when I should respray because it doesn't kill the eggs, and the bottle didn't say. Is it two weeks?
I don't remember when I should respray because it doesn't kill the eggs, and the bottle didn't say. Is it two weeks?

Only birds confined indoors, with no wild birds ever getting inside, won't have occasional issues with external parasites.