Farnam Tri-Tec 14 Insecticide

Farnam Tri-Tec 14 Insecticide
600ml Spray
946ml Spray
3.8 Litre Bottle

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  • 600ml Spray £43.83
  • 946ml Spray £51.99
  • Special Offer 3.8 Litre Bottle £177.85

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Farnam® Tri-Tec 14™ Insecticide. Farnam® Tri-Tec 14™ Insecticide is a powerful insecticide that can be used to disinfect the horse's environment and kill annoying insects.

Farnam® Tri-Tec 14™ Insecticide is effective against horseflies, stable flies, house flies, face flies, horn flies, deer flies, mosquitoes, deer ticks, gnats, lice and also the carriers of west nile disease, lyme tick disease, swamp fever and many more.

Farnam® Tri-Tec 14™ Insecticide contains cypermethrin, pyrethins and strong polymers to ensure it stays in place and effective for up to 14 days.

Do not use directly on the horse or other animals or their clothing/rugs.

Harmful to the environment.


  • Cypermethrin - 0.15%
  • Pyrethrins - 1.00%

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Reviews (31)

Summary of Reviews for Farnam Tri-Tec 14 Insecticide

Overall 5
Value For Money
Pet's Opinion
31 out of 31 (100%) customers would recommend this product.
5 stars (22 reviews)
4 stars (6 reviews)
3 stars (3 reviews)
2 stars (0 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

55 Best fly spray on the market
Verified Purchase

By on 28 July 2021

This stuff really works and it actually smells nice! The flies are particularly bad this year and my mare came in covered in lumps and bumps. I sprayed this on her and all lumps and bumps gone in 48 hors with no new bites. You only have to use it every 4 to 5 days I would say to keep the nasty horse flies away

Customer recommends this product

55 Fly Repellent
Verified Purchase

By on 14 July 2021

Brilliant! a Fly Killer that actually works.....

Customer recommends this product

55 Excellent product
Verified Purchase

By on 11 April 2021

It is very long lasting and very effective

Customer recommends this product

45 Seems to work on Crab Flies
Verified Purchase

By on 22 October 2020

We had cases of Crab Flies sending horses crazy locally, so I bought some as a precaution. Before I needed to use it a neighbouring horse had a crab fly and was reacting very badly, I loaned my spray to the owner, who tells me the horse calmed after a while and had no problem thereafter. I would assume that it worked well, and shall save the remainder for emergencies.

Customer recommends this product

55 Replacement wonderful
Verified Purchase

By on 12 September 2020

Works so much better and effectively than I was expecting. Turned out well worth waiting for replacement after initial delivery was damaged in transit.

Customer recommends this product

1 person found this review helpful

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Q & A

Below are some recent questions we've received regarding Farnam Tri-Tec 14 Insecticide, including answers from our team.

4 February 2021 at 6:07pm


Sarah-Louise Deakin

  • VioVet customer since 2021
  • From: , United Kingdom

Does this product contain DEET (diethyltoluamide / Diethyl-meta-toluamide) please?

  • VioVet Staff

This product does not contain DEET, it contains the following ingredients:
Cypermethrin, Pyrethrins, Piperonyl Butoxide, Technical and Butoxypolypropylene Glycol

20 August 2018 at 8:40pm

Instructions say do not sparay directly on horses?

Linda Wells

  • VioVet customer since 2013
  • From: Lincolnshire, United Kingdom

instructions say dont spray directly on horses but judging by reviews people have not read this ? Is it a fly spray for horses?

  • VioVet Staff

Hi Linda,

This product should not be applied directly to horses. It is a spray for stables and lorries to kill flies inside that would attack your horse.

Hope this helps,


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