Farnam Repel-Xp Emulsifiable Fly Spray

Regularly: $168.42
Today's savings: 37%

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In Stock. Usually Ships within 24 hours.



In Stock. Usually Ships within 24 hours.



In Stock. Usually Ships within 24 hours.

Shipping weight = 9.00 lbs.


Product Summary:

Farnam™ Repel-X®pe Emulsifiable Fly Spray

Farnam™ Repel-X®pe Emulsifiable Fly Spray kills on contact and provides economical protection from biting and bloodsucking flies, gnats and mosquitoes. It also repels horn flies, house flies, stable flies, and horse and deer flies.


  • The horseman's choice for more than 30 years
  • Diluted 1:7 with water, provides economical protection from house flies, horn flies, gnats, and mosquitoes
  • Mixed at 1:4 dilution, kills ticks, horse flies, deer flies, and stable flies
  • Single application keeps flies, gnats, ticks, and mosquitoes off horse for days
  • Superior fly control that's easy on the budget
Item Specifications:

Active Ingredients:
Prallethrin 0.27%, Piperonyl Butoxide 1.00%.

Directions for Use:
It is a violation of Federal law to use this Product in a manner inconsistent with its labeling. For use only on horses and ponies. Shake well before using.

Mix Repel-Xpe Emulsifiable Fly Spray with water at proper dilution. First put the required amount into sprayer or mixing container. Then add water according to directions and mix thoroughly before using.

Important: Mix fresh solution before each use. Apply with pressure sprayer or you can sponge it on horses. Make sure animal's coat is thoroughly wet. Use approximately 8 oz. for each animal depending on size of horse or pony. Avoid getting solution into the animal's eyes.

Horses: To protect horses from horn flies, house flies, gnats and mosquitoes apply at a 1:7 dilution. Each pint of concentrate makes a gallon of finished spray. Repeat application every 3 to 4 days, or as often as needed. Where horse flies, deer flies (tabanids), stable flies, ticks, or deer ticks, which may transmit Lyme Disease, are a problem, apply a 1:4 dilution and repeat as often as needed.

Cannot ship air, must ship ground.

Downloadable Resources
Product Label FrontManufacturer Information
Product Label BackManufacturer Information
MSDS SheetManufacturer Information
Style Item Number Model Number UPC
32oz SLT100010 032 100512028 086621023307
Gallon SLT100010 401 100512027 086621023291
Pint SLT100010 PT 100502321 086621023215

Product Reviews by Customers

4.4 / 5.0
66 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Doesn't keep the flys off
Expensive and doesn't keep the flys off to well
August 26, 2018
over 2 years ago
Fly killer
I use on horse in stall and flies are gone.
August 20, 2018
over 3 years ago
Easy to mix and use, works well. I have to apply every day Good value overall.
August 16, 2018
2 months ago
best one out there used alot of them.
July 21, 2018
3 months ago
Farnam Repel-Xp
Farnam products are good quality. I have been using them for years. Repel-Xp fly spray is easy to mix and it works great. The price is good ,too.
July 14, 2018
3 months ago
June 22, 2018
4 months ago
I have used Repel-x for many years and have always had good results.
February 19, 2018
8 months ago
Works well
I have used the concentrate for years in southwest Florida. I mix it 5 to 1 and add a little Skin So Soft (Avon) to help it last a bit longer on the horses' coats. Better product and more cost effective than most. One of my horses is 32 and has sensitive skin and this is the best product I've used.
October 4, 2017
1 year ago
The best but for your buck!!
I have used this concentrate for at least 5 years now. I mix it as directed on the label but i add a couple of things to it which also makes it a great mosquito repellent too. It lasts for a whole season for 2 horses and I spray them every day.
September 21, 2017
1 year ago
Been useing it for many year love how you can mix it to suit your needs.
August 15, 2017
1 year ago
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 10 questions Browse 10 questions and 84 answers
Why did you choose this?
Horse.com Store
Won't use anything else. Have too many horses to use stuff that doesn't work well.
Sue F on Jul 26, 2018
I always use this brand.
Coral K on Apr 3, 2018
Won't use anything else. Have too many horses to use stuff that doesn't work well.
Sue F on Jul 26, 2018
This IS the best of all fly sprays ! I think it keeps the flies from biting and I use it as a premise spray in stalls too. Works Great !!
karen m on Apr 9, 2018
I always use this brand.
Coral K on Apr 3, 2018
Farnum works very well and mixing it saves money>>
CANDI B on Oct 8, 2017
have used this product previously.
jerry m on Jul 24, 2017
like Farnam products
Kathy E on Jul 5, 2017
PAMELA B on Jun 7, 2017
I love Repel-X because it kills anything with wings. We have lots of yellow jackets around and this gets rid of them. This kills fleas in the yard, but do not use on the dogs or cats. It will make them sick. I Love the smell of it. Reminds me of the horse shows.
Thank You, Cindi
Cindi A on Jun 7, 2017
Have used it before
JULEE D on May 26, 2017
like the product
STEPHANIE K on May 24, 2017
I have been using Repel-X concentrate for over 20 years and it is the only one that works on all the bugs in Florida!
PAMELA R on May 9, 2017
Works well.
KAYE B on May 1, 2017
We keep trying other products and we always end up coming back to Repel-X. NONE last the length of time they claim but we have had the best results with the Repel-X for spray and the Wipe for rub on. So why do we keep trying others? Because the Repel-X must be mixed stronger then the suggested amount to deter the deer fly and has a tendency to cause peeling/flaking from skin burn to the horse... tho that doesn't seem to bother them like the flies do, and the skin adjusts.
Deborah T on May 1, 2017
Continue to utilize this product with great results.
KATHY C on Apr 18, 2017
to spray horses while in close grooming to prevent fly reactions (kicking etc)
Wayne A on Apr 7, 2017
works well, pleasant scent
cheryl s on Apr 6, 2017
Works better for my horses than anything else I have tried.
Patricia L on Mar 31, 2017
I mix this with white vinegar, skin so soft and water to make fly spray all summer which is 6 months here at least.
TONA R on Mar 16, 2017
I use this to switch off from Endure!
TINA F on Mar 11, 2017
This is my favorite fly spray! Not sticky or oily, and it is effective. It is a concentrate (1 to 7) so a jug lasts a long time.
Karen Ruth L on Jan 7, 2017
good product; decent price
Gale V on Jan 6, 2017
awesome product. a little pricey but it works great and smells good too
Meegan G on Aug 12, 2016
augment fly predators and when I'm away from home
JANICE H on Aug 10, 2016
Chose this because I have used it for over 10 years and it is the best I have found.
Ryan N on Jul 20, 2016
Effective, economical and not nearly as toxic as many similar sprays.
SUZY M on Jun 6, 2016
I have used this product for years and find it to be very effective here in Louisiana
Patsy C on Mar 29, 2016
Best price for item
NANCY S on Mar 23, 2016
I like the product and it works to keep flys down
DENNIS S on Mar 18, 2016
Good general fly killer and repellant for horse and stable.
Kay L on Mar 7, 2016
best on market and price
Patti b on Dec 10, 2015
I use this every summer for fly control. Its concentrated and easy to mix.
ANGELA W on Sep 30, 2015
PAT G on Sep 25, 2015
It works and is economical.
M.J. P on Aug 10, 2015
I have been using this for years & it works pretty good
BEA H on Aug 10, 2015
great price and product
H L on Aug 10, 2015
this fly spray works well
Elizabeth P on Jul 29, 2015
I've used Repel-Xp for years and it's the only thing to repel flies.
JERRY L on Jun 23, 2015
for my use
Donna W on Jun 18, 2015
I have used this in the past and it works well and is priced right.
Eilene Diane W on Jun 15, 2015
LISA S on Jun 13, 2015
ROBIN M on Jun 10, 2015
it works very well and is worth the money.
rachael p on Jun 9, 2015
This 1 gallon of pyrethrin based concentrate will make 7 gallons of fly spray which is a wonderful bargain. Works great too. Have used it for 20 years. I'm a DVM and I love it.
Jane K on Jun 8, 2015
The Best
JAMES G on Jun 3, 2015
I didn't. I purchased 128 oz Repel-x.
LYNN J on May 24, 2015
used successfully for many years
Cynthia S on May 21, 2015
The only bugspray i use
ROBIN C on May 18, 2015
price, used before
JUDITH G on May 2, 2015
Works GREAT and you get a lot of spray because you mix it!!!
SHERRY H on May 1, 2015
I've used it before. It seems to help with the horse flies and deer flies as well as the other types of flies...at least for a short period of time
KEVIE O on May 1, 2015
This IS the best of all fly sprays ! I think it keeps the flies from biting and I use it as a premise spray in stalls too. Works Great !!
karen m on Apr 9, 2018
Farnum works very well and mixing it saves money>>
CANDI B on Oct 8, 2017
Can you use this product Repel-X p on dogs?
marley s on Jul 2, 2014
BEST ANSWER: I have Cattledogs and have used this on them for years. I have not noticed any ill effects. it does seem to help with the fly relief. This is just my observation and not a recommendation.
can this be used on dogs?
A shopper on Jul 1, 2016
BEST ANSWER: I think that question is best answered by your veterinarian. I know you can use some essential oils on dogs ( to repel pests) that will kill a cat. But all that is best answered by a vet.
list of ingredients?
A shopper on May 12, 2015
BEST ANSWER: Not sure exactly, but I do know that I have tried many fly sprays and this one is effective, smells pleasant, conditions coat and is cost effective and worth the effort to mix yourself for the strength that suits you and your horses the best.
Do you accept coupons?
roxie on Aug 26, 2015
BEST ANSWER: We do not accept coupons. We usually have great discounts going, though - you are welcome to call our Customer Care team for the latest promotions at 888-653-0026. We are available 8AM-6PM weekdays, Eastern time.
Why do you need to make a new batch for each application?
Sherry P on Jul 19, 2015
BEST ANSWER: I believe this is their suggestion for the best use, meaning the fresher, the better results. The longer this stuff stays stable, the less potent it is. I mix a 16-32 oz bottle & use for 3-4 weeks, & I am happy with the results. I mix this with apple cider vinegar & a tad of skin so soft.
Is this a concentrate?
A shopper on Aug 26, 2016
BEST ANSWER: Yes you mix it with water depending on the strength you need.
is this concentrated?
A shopper on Apr 25, 2016
BEST ANSWER: yes, mix with water in a 1 part Repel-X to 7 parts water. check the directions for more detailed info.
Can this product be used on beef cattle?
A shopper on Jul 17, 2018
BEST ANSWER: This works great to keep flies, mosquitos, fleas, ticks, and lice off horses and dogs. I'm sure it would do the same on your beef cows. However, there are products specifically designed to be used on cattle so you don't have to spray them everyday.
Is it free freight on the 32oz?
A shopper on Apr 18, 2018
BEST ANSWER: It can be, if this order is part of a qualifying free shipping offer.