Home made fly repellent

[Carlos's Mum]

On behalf of a friend who has quite a few rescue ponies, can you give me a good recipe which is not as expensive to make as the cost of over the counter ones please?

 

[JumpTheMoon1]

Lots of recipes on the net if you look.

 

[cauda equina]

Lots here
https://forums.horseandhound.co.uk/threads/homemade-fly-spray-recipes-post-yours-here.157038/