ULTRABoss® Pour-On Insecticide

Item #0028133

$32.99 to $119.95

ULTRABoss® Pour-On Insecticide

ULTRABoss® Pour-On is used for beef and dairy cattle, horses, goats and sheep. Contains 5% Permethrin and 5% Piperonyl Butoxide for control against flies and lice. Great for Back Rub. Read More

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ULTRABoss® Cattle Pour-On Insecticide

A synergized formula containing 5% permethrin and 5% piperonyl butoxide. For beef and dairy cattle and sheep.

ULTRABoss® Cattle Pour-On Insecticide is best for:

  • lactating and non lactating dairy cattle
  • beef cattle
  • calves
  • horses
  • lactating and non-lactating goats

ULTRABOSS® Cattle Pour-On Insecticide is used to aid in the control of:

  • lice, horn flies and face flies
  • horse flies and stable flies 
  • mosquitoes, black flies, and ticks
  • lice and keds on sheep

Cattle apply 3 mL per 100 lbs body weight.

Sheep apply 1.5 mL per 50 lbs of body weight.

No slaughter withdrawal and no milk discard.

For Backrubber mix 100ml/gallon of diesel fuel or mineral oil.

Now approved for horses and goats!

View manufacturer and/or label information


  • Brand: Merck
  • Type: Insecticide
  • Form: Pour-On, Backrubber
  • Ingredient: Permethrin,Piperonyl Butoxide
  • Insect Type: Lice,Flies,Mosquitoes,Ticks
  • Size: Quart,Gallon

Reviews (3)

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  1. 5.0 out of 5 stars


    Highly recommend ULTRABOSS, it does the job.

  2. 5.0 out of 5 stars

    "the Vet recommended "

    My Vet recommended this product for my donkeys . Has to be good if a Vet recommends this product. I plan to always going to keep it on hand.

  3. 5.0 out of 5 stars

    "Great for lice on goats!"

    "We used the UltraBoss Pour-On by administering a very small amount down the back of our dairy goats. It worked wonderfully on a few new herd additions that came to us ""with friends"". We now use this preventatively when we notice itchy animals next to ours at the shows and fairs. Works excellent, no side effects."

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