Ky hills
Well-known member
Have been using insecticide ear tags for several years, and it seems to work ok, at least for a few months. The only issues are having to run them through the chute later another time after we do our spring working. Then they seem to loose their effectiveness by late summer early fall, then have to cut the tags out. I am wondering if others use the mineral, and if it is effective. I also was told years ago, that it could affect breeding, not sure if that is accurate or not.