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Merck Ultra Boss Pour-On Insecticide (Permethrin And Piperonyl Butoxide), 1 qt., 19474

SKU: 113343499
Merck Ultra Boss Pour-On Insecticide (Permethrin And Piperonyl Butoxide), 1 qt., 19474
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Product Rating is 4.7
4.7
 (17)

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Item Information

ULTRA BOSS Pour On insecticide is used for beef, dairy and lactating cattle; sheep, goats and horses. Target species include: lice, horn flies, face flies, horse flies, stable flies, mosquitos, black flies and ticks.

Available in a 32 oz bottle
4.96 in. length x 2.2 in. width x 8.9 in. height

  • Low-volume dosage reduces time and labor
  • Effective horn fly control for 8 weeks. Also controls face flies
  • Season-long lice control with one application (January through April)
  • Apply 3 mL per 100 lb. body weight, up to 30 mL maximum application limit.
  • Also approved for use in backrubbers
  • For optimum lice control, two treatments at 14-day intervals are recommended
Special Note: For cattle, horses, sheep and goats, repeat treatment as needed but not more than once every two weeks. For horses, do not saddle horse for 6 hours after application and refrain from washing down area of application. For optimum lice control, two treatments at 14-day intervals are recommended. Ultra Boss Pour-On Insecticide is not effective against cattle grubs.

Specification Description
Brand: Merck
Animal Compatibility: Beef, dairy and lactating cattle; sheep, goats and horses
Active Ingredient(s): 5% Permethrin and 5% Piperonyl Butoxide
Special Feature(s): N/A
Part Number: 19474
CountryofOrigin: Made in USA
Product Weight: 2.03 lbs
Targeted Insect(s): Target species include: lice, horn flies, face flies, horse flies, stable flies, mosquitos, black flies and ticks.
Application/Use: 1 ea
Form: liquid, 32 oz bottle
Warranty: N/A
Manufacturer Part Number 19474
Merck Ultra Boss Pour-On Insecticide (Permethrin And Piperonyl Butoxide), 1 qt., 19474 is rated 4.7 out of 5 by 17.
Rated 5 out of 5 by from Didn’t expect it to work this good I applied it once on my goats when they had lice, and got rid of the problem. Didn’t have to retreat. Glad to have it in the goats med cabinet.
Date published: 2019-04-15
Rated 5 out of 5 by from Easy to use Purchased this a few weeks ago. My goats have no sign of lice after second treatment. Easy to use and safe for pregnant does.
Date published: 2019-03-25
Rated 5 out of 5 by from Great product!! Bought this for my goats and its a great product that works quickly. Shipping was very quick and packaging good.
Date published: 2019-01-17
Rated 5 out of 5 by from Pour on Love it! I put it on my cows, calves, donkeys and horses. It last for about 2 weeks.
Date published: 2018-08-27
Rated 5 out of 5 by from Great Product This pour on has always worked extremely well for us. It’s got an extra ingredient so it’s like a heavy hitter on fly control. We use a syringe and needle to apply this right out of the feed truck onto our cattle’s backs and heads, makes it very stress free fly control)
Date published: 2018-08-22
Rated 1 out of 5 by from Not worth buying Doesn't work very long, maybe 2 days at the most. I don't think I will be buying again
Date published: 2018-08-13
Rated 5 out of 5 by from Great product, just hard to get ordered! I ordered it online and shipped it to the store. The store had to refund the purchase price and resell it to us because the online could not get the TAX EXEMPT. The store worked the problem and we got the product. it is great stuff!!!. We use it on our horses on the instructions of our VET. It does what it says it does and does it well.
Date published: 2018-07-25
Rated 5 out of 5 by from great fly dope!!!! I have tried many different products to keep flies off my horses and cows. nothing worked more than 3 or 4 days. This ULTRA BOSS is the best stuf I have ever put down my mares back....first treatment was 5/26/2017, as of to day 6/22/2017 still no flies!!! My cows are wild so i took a large syringe, as they were eating, i shot (NO NEEDLE)it as close to their backs as i could, still no flies!!!!! GRRRREAT STUFF!!
Date published: 2017-06-22
Rated 5 out of 5 by from WORKS Our poor horse Candy was being riddled with ticks. She is a pasture horse. After one treatment they were all but gone. Just have her another treatment yesterday.
Date published: 2017-06-10
Rated 5 out of 5 by from Great Product! We bought this product because our poor cows were suffering from all of the flies biting them. It has taken care of the problem and there is not a fly on them. Extremely satisfied and will definitely buy it again!!
Date published: 2016-08-09
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Can this be used on lactating cattle & on calves?

Asked by: KittyP
This can be applied to lactating and non-lactating dairy cattle, beef cattle, and calves.
Answered by: AmandaW
Date published: 2019-03-17

if it does get in there eyes will it harm them. the flies get into there eyes after the water I guess.. by the end of the day eyes have ben running all day. can I pour it on a rubbing post mixed with oil or water. mixing with water will it evap.

Asked by: dickson
This product is meant to be poured along the back and down the face. When used as directed, it should not harm their eyes.
Answered by: AshleyBe
Date published: 2019-03-17

Is their an amount of time you should wait before selling a sheep for slaughter after applying this product?

Asked by: shepard22772
There is no slaughter withdrawal or milk discard.
Answered by: AmandaW
Date published: 2019-03-17

I use Ivermectin pour on can pour this product on at the same time?

Asked by: Needak
One would want to use one or the other. Not at the same time.
Answered by: NRoberts
Date published: 2019-05-02

What is the timeframe for effective action of drug (time required to kill parasites)? and is there a withdrawl period between use and slaughter ?

Asked by: BarbieV
Ultra Boss is effective for 4-6 weeks depending on weather conditions and fly population on the cattle. There is no withdrawal time for slaughter.
Answered by: MitchellW
Date published: 2019-10-11

Can this be used on my goats face? More specifically around eyes where there is hair loss and itching.

Asked by: Quistcha
The manufacturer recommends pouring the Ultra Boss down the face and between the eyes, being careful to avoid getting the product into the animal's eyes.
Answered by: AmandaW
Date published: 2019-03-17

do you mix this with water or What? to spray on sheep?

Asked by: bedeelov
ULTRABoss Pour-On Insecticide dosage and application instructions below: in Sheep: Apply 1.5 mL per 50 lbs body weight of animal up to a maximum of 18 mL for any one animal. Pour along back only. in Goats: Apply 1.5 mL per 50 lbs body weight of animal up to a maximum of 18 mL for any one animal. Pour along back and down face in Cattle & Horses: Apply 3 mL per 100 lbs body weight of animal up to a maximum of 30 mL for any one animal. Pour along back and down face. Back Rubber Use: Mix 100 mL per gallon of #2 diesel oil or mineral oil. Keep rubbing device charged. Results improved by daily forced use. For cattle, horses, sheep and goats, repeat treatment as needed but not more than once every two weeks. For horses, do not saddle horse for 6 hours after application and refrain from washing down area of application. For optimum lice control, two treatments at 14-day intervals are recommended.
Answered by: IbethN
Date published: 2019-06-13

Is this product safe for use in 4 month old kids?

Asked by: Gretle
Ultra Boss is safe for young goats, however the dose would be very small. It is 1.5 ml per 50 pounds with a maximum of 18 ml per animal. Pour along the back and down the face.
Answered by: MatthewL
Date published: 2019-05-14
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