Originally Posted by Clava
No much help when we are most attacked by horseflies when hacking out, they seem to like crops and woods mostly.
Ordinary flies are annoying, but horseflies are in a league of their own in terms of discomfort and pain.
Oh well I know that -- I've been bitten by those things and it is painful in the extreme!! I don't blame the horses in the least for stampeding off.
It is true that the repellant is less effective on the flies, in my experience. A windy day out in the open, on a hill, is the best deterrent but that's pretty hard to replicate and bottle.