Discover the Best Value on Oklahoma Pastures

Trust the IGR that delivers ROI for your cattle operation. Altosid® IGR can help Oklahoma ranchers protect their operations from profit-eating horn flies with the best value on pasture. Altosid® IGR is the first and proven feed-through solution delivering targeted control of horn flies, with no known resistance. Protect cattle health and weight gains from Oklahoma horn flies, the number one pest threat on pasture, with no additional handling, mixing or labor required.

Defeat the Enemy with Proven Feed-Through Horn Fly Control

Know Your Product

Troubleshooting Your
Horn Fly Issues

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Defeat The Enemy

To truly understand the importance of controlling horn flies in Oklahoma, it's important to understand the horn fly life cycle, the economic threshold for horn flies on beef cattle, and the potential to promote weight gain through simple and cost-effective horn fly control, rather than through the use of labor-intensive back rubbers and ear tags. Altosid® IGR provides consistent horn fly control all season, with less labor. As your cattle graze, fly control is dispersed in manure to combat horn flies and break their life cycles.

Horn Fly Life Cycle

Altosid ® IGR delivers targeted horn fly control

Economic Threshold

Horn fly infestations can reach 4,000 flies per animal

Increased Weight Gains

Study confirms a 15.8% increase in daily weight gains for cattle treated with Altosid® IGR
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Tips for Protecting Your Profits

In Oklahoma, horn flies are a serious threat to beef cattle — and your bottom line. By controlling horn flies with Altosid® IGR, animals could experience daily weight gains of as much as 15.8% (0.33 lbs.) greater than animals where no fly control solution is being deployed. The estimated weight gains from using Altosid® IGR can help Oklahoma producers achieve as much as a 13:1 return on their investment in the product.

The Original Horn Fly IGR

How It Works

Altosid ® IGR Products

Effectively Control Horn Fly Populations

From preventing common diseases and combating weight and blood loss to increasing cattle comfort, our team of experts has the answers and resources for you to protect your herd and bottom line.

Horn flies are the number-one economic ectoparasite in North American cattle production, causing an estimated $1 billion loss annually.

Adult horn flies live 2 to 4 weeks, taking 20 to 40 blood meals per day.

Studies have shown that at a level of even 200 flies per animal, your bottom line and animals will begin to see the effects. When left untreated, horn fly infestations can reach up to 4,000 flies per animal, staying on the cattle both day and night.

An IPM program includes biological, physical-mechanical, and cultural efforts to reinforce your fly control. A comprehensive IPM program consists of three phases: Planning, is essential to continually monitor the results to evaluate the effectiveness of the program.

Altosid® IGR delivers the most effective, cost-efficient control of horn flies with:

  • No extra work rounding up or handling cattle as with ear tags, back rubbers, and sprays. The animals distribute the active ingredient for you.
  • No withdrawal times required before culling or milking.
  • No known instances of resistance in nearly 50 years of use -- a common problem for other horn fly control options such as ear tags if not administered properly.
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Contact Us to Find a Dealer Near You in Oklahoma & Learn More

Interested in learning more about Altosid ® IGR? Fill out the form below and we'll get you in touch with a local feed dealer to help find the formulation that works best for you.