I used this for years and years until I discovered Equi-sect by Farnam. The Pyranah is oily and has a strong smell. By the time I would finish a trail ride, my horse had collected a ton of dirt due to the oil. It's not particularly effective for horse flies either.

Pros: Works longer than most other sprays on the market

Cons: Oily, strong smell

This product gave my horse hives and the smell almost knocked me out! It works, but it's too strong to be safe.

Pros: Killed on contact

Cons: Too strong!!

This is the only fly spray I use--it's safe and most importantly effective! I have never had any negative reactions from my horses, only thanks for the fly relief!

Pros: Great flie spray

Cons: None

This is about the best to use whee I live. We have Mosquitos almost year round. This really keeps them off. I spray it and sponge it on.

Pros: Works great!

Cons: pricey

The only kind we buy!

Pros: Effective

Cons: n/a