Take Action Against Horn Flies

While there are many types of flies, the horn fly presents the biggest threat to livestock on pasture. The most convenient way to control horn flies in beef and dairy cattle on pasture is to give them a supplement or feed containing Altosid® IGR.

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 by preventing pupae from developing into biting adult flies.

Altosid® IGR eliminates the expense, labor and stress on your cattle associated with other fly control methods. 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. After the flies lay their eggs in the freshly treated manure, (S)-methoprene breaks the horn fly life cycle by mimicking naturally occurring insect biochemicals that are responsible for insect development, preventing pupae from emerging into biting adult flies.

To fit your unique needs, Altosid® IGR is formulated in a range of solutions, including as a block, tub, loose mineral, and custom liquid feeds.