Skip to Main Content

For security, click here to clear your browsing session to remove customer data and shopping cart contents, and to start a new shopping session. 

Tractor Supply Co.

We Are Listening...

Say something like...

"Show me 4health dog food..."

You will be taken automatically
to your search results.

Please enable your microphone.

Your speech was not recognized

Click the microphone in the search bar to try again, or start typing your search term.

We are searching now

Your search results
will display momentarily...

Main Content
MESSAGE

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
Enter Zip Code for price More Info
Product price

Save Up To
See price at checkout More Info
Product Rating is 4.7
4.7
 (17)

Quantity

TSC of  #

,
TSC of  #

,
TSC of  #

,
TSC of  #

,
Check Availability at Other Stores
Standard Delivery Not Available to 
Notice: This item will ship within 0 days.
This product may require up to 0 additional days for order processing prior to shipping.
Change Delivery Location

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
Active Ingredient(s): 5% Permethrin and 5% Piperonyl Butoxide
Product Weight: 2.03 lbs
Animal Compatibility: Beef, dairy and lactating cattle; sheep, goats and horses
CountryofOrigin: Made in USA
Warranty: N/A
Application/Use: 1 ea
Form: liquid, 32 oz bottle
Brand: Merck
Special Feature(s): N/A
Part Number: 19474
Targeted Insect(s): Target species include: lice, horn flies, face flies, horse flies, stable flies, mosquitos, black flies and ticks.
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
  • y_2019, m_8, d_5, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_2, tr_14
  • loc_en_US, sid_113343499, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_tractorsupply
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 6ms
  • REVIEWS, PRODUCT

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

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

Is this ok to use for my dog

Asked by: Lisa bluiz
This is only for use with cattle, sheep, goats and horses.
Answered by: Alicia M
Date published: 2019-03-17
  • y_2019, m_8, d_5, h_16CST
  • bvseo_bulk, prod_bvqa, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_18
  • loc_en_US, sid_113343499, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING)]
  • clientName_tractorsupply
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 5ms
  • QUESTIONS, PRODUCT