Insecticide For Cattle VetGun

VetGun - Horn Fly & Lice Insecticide For Cattle


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Horn Flies Cost You Money!


Horn flies are a livestock pest that can significantly impact the health and productivity of cattle. Horn flies feed frequently and exclusively on blood. The resulting pain and irritation, interrupted grazing, defensive behaviors, lack of rest and blood-loss can cause up to 30% less weight gain in just 80 days.

Nothing works like the VetGun for horn fly control on cattle – now with resistance management options!

The VetGun Insecticide Delivery System is a unique system for horn flies and lice control on cattle with little to no effort and from 15' - 30' away!

  • Easy to operate
  • Accurate
  • Reliable

The VetGun is a "one-two punch" for in-season horn fly control! One person can easily apply insecticide from horseback, pickup, ATV, or while on foot!

It's the only approved delivery system for treating external parasites using scientifically developed capsules filled with a measurable dose of insecticides.

AiM-L VetCaps sold separately

The AiM-L VetCaps burst upon contact to deliver the insecticide.

The VetGun is powered by CO2.

What Do You Get?

The VetGun along with two adapters, allowing use with both 25 gm and 90 gm CO2 propellant cartridges (CO2 propellant cartridges or refillable CO2 tank sold separately).

The VetGun is also built with exceptional engineering that's built to last. If for whatever reason your VetGun fails on you due to a defective unit or workmanship, feel free to use the Life-Time Warranty Huevepharma will repair or replace the VetGun free of charge. Terms and conditions apply.

Storage & Handling:

Please note storage and handling requirements for VetCaps as they are sensitive to prolonged cold temperatures and humidity. Store VetCaps in conditions where the relative humidity is kept between 30% and 50% and temperatures are maintained between 50 F-80°F.

Directions For Use:

Use AiM-L and AiM-A VetCaps exclusively with a VetGun and in accordance with the use directions and treatment method recommendations.

  • Apply when the animal is between 15 and 30 feet distance from the user.
  • Do not apply treatment when bystanders are within 30 feet of the animal.
  • Do not apply to any animals in or within 10 feet of bodies of water. AIM VetCaps is designed for use only with the VetGun that carries the VetCap registered label. Using any other application device or method could be unsafe, ineffective and/or cause harm or injury.


Apply a VetCap to the upper two-thirds side of the animal's body, anywhere between the front shoulders and six inches ahead of the base of the tail. Apply one VetCap per animal.

How Often:

Treatment for horn flies with AiM-L can be repeated as needed, but not more than once every two weeks and do not apply more often than four times within any six-month period. For optimal lice control, an initial application followed by a second treatment two weeks later is recommended. It is recommended that AiM-A be applied once in the season to help break the cycle of horn fly resistance.

Producers should plan VetCap applications to horn fly populations causing economic damage &mdash generally when numbers approach 200 per animal. By minimizing the time horn flies are exposed to each insecticide, and by rotating chemical classes, parasites have less time to develop their defenses.



1 VetCap (10mL) for cattle over 600 pounds.

Optional Parts: