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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
CountryofOrigin: Made in USA
Animal Compatibility: Beef, dairy and lactating cattle; sheep, goats and horses
Product Weight: 2.03 lbs
Warranty: N/A
Application/Use: 1 ea
Form: liquid, 32 oz bottle
Brand: Merck
Part Number: 19474
Special Feature(s): N/A
Targeted Insect(s): Target species include: lice, horn flies, face flies, horse flies, stable flies, mosquitos, black flies and ticks.
Active Ingredient(s): 5% Permethrin and 5% Piperonyl Butoxide
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 16.
Rated 5 out of 5 by from Treating Goat Mites Worked well for treating goats for mites. Remember to do second treatment 14 days later.
Date published: 2019-06-26
Rated 5 out of 5 by from Gave me my life back! The answer to my prayers. Living in Florida flies can be quite the challenge. It was getting to the point where I was spending more time fly spraying horses than it took my toothless senior to eat his 6qts of grain in the morning (yea, I know you senior horse owners hear me there!). I needed something that was going to give me my life back and saw many good reviews and figured at this point I had nothing to loose. 2 weeks post first application (and we had 2-3 good rains during this period and horses were out in it) I'm still seeing far less flies than usual. I did reapply at the 2 week mark as there were a handful of flies and I fear going back to life pre-UltraBoss. Bottom line - buy this!
Date published: 2019-05-22
Rated 5 out of 5 by from Great Works great better than cylence. Used on my goats!
Date published: 2019-05-22
Rated 5 out of 5 by from Great customer service This is a great product. We use on our goat heard. Sure wish Tractor Supply would stick in their stores. We gave to special order it on their online store but thankful we can get it there.
Date published: 2019-05-09
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How long will it last after a rain? I poured it on my cattle in the early morning and it rained in the afternoon. Will it still be effective?

Asked by: LB Angus
We recommend applying the product 3 hours before any type of precipitation. 3 hrs it allows the product time to work into the hair follicle.
Answered by: MitchellW
Date published: 2019-02-21

What about swine?

Asked by: ACdelco
This product is not labeled for swine, and we do not recommend using with pigs.
Answered by: MatthewL
Date published: 2019-06-30

Can I use this on goats,and what is the application amount

Asked by: Dawn11
For 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.
Answered by: NRoberts
Date published: 2018-06-04

can this be mixed an used as a spray on cattle if so how

Asked by: angus cows
This product is no labeled or intended for use as a spray. It must be poured on.
Answered by: DanielB
Date published: 2017-07-18

Can this product cause hair loss in a horse?

Asked by: Jenn1978
No. If hair loss occurs, it's from itching from the lice.
Answered by: AmandaW
Date published: 2019-03-17

can you use on outside dogs? have terrible on their ears this year

Asked by: dogwoman
This is only for use with cattle, sheep, goats and horses.
Answered by: DanielB
Date published: 2019-03-17

Is it possible to use in a sprayer, cattle on the wild side

Asked by: Ruthie61
We do not recommend it as this product is not labeled for use in a sprayer.
Answered by: DanielB
Date published: 2017-07-19

Is ultra boss solution effective if thawed after being frozen solid from winter weather?

Asked by: Cb67
The manufacturer does not recommend using this product once frozen then thawed.
Answered by: CodyP
Date published: 2019-01-15

IS THIS PRODUCT SAFE FOR PREGNANT MARES?

Asked by: RACEHORSE 2
Unfortunately, the answer is not a simple “yes” or “no”. Please call Merck Equine Technical Services at 866-349-3497 and they will be happy to assist.
Answered by: MitchellW
Date published: 2019-07-10

I see that this can be used on goats, can I use this on my pregnant doe?

Asked by: Reddenranch
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