Quote: ... a 20 mite fall (with no Apistan) in 48 hours. ...This also sounds to me as if it is a large drop. Unfortunately, no one knows the significance of any counted drop. Response: True, not the exact significance. But to me there are three conditions: 1. No mites (you don't need to treat). 2. Some mites (better treat). 3. A lot of mites (completely out of hand, maybe too late). PB