Horn flies spend their time biting cattle’s backs and midlines, spreading down their sides. This location is tough for cattle to reach, leading to the irritation that causes cattle to go off feed. To stop this problem, it is easier to attack flies where they lay their eggs and prevent the emergence of future populations.
Altosid® IGR is an insect growth regulator (IGR) that passes through the animal and into the manure, where horn flies lay their eggs. It breaks the horn fly life cycle, preventing pupae from developing into biting adult flies. There’s no need to round up or handle cattle because the animals spread the horn fly control as they graze, placing it in the exact location where horn flies lay their eggs.
1 Byford, R.L., Craig, M.E., Crosby, B.L., A Review of Ectoparasites and Their Effect on Cattle Production, J. Anim. Sci., 1992, 70:597-602.
2 NebGuide, University of Nebraska Cooperative Extension Service.