We get evil greenheads and B-52s which usually have blue eyes (for those who don’t know greenheads are large horsefly types with iridescent green eyes, a painful bite and they emerge from the salt marsh. If you smack them, they’ll drop but then get up and come right back at your horse’s belly, neck, whatever. They must be CRUSHED!)
Rutgers University has directions for making greenhead traps on their website if you’re interested. We have a bunch. Not enough but they help. The old guys tell me that use of traps by the state and individuals has decreased the density of the rotten flies.
Our horses only get turnout at night or on cloudy days during the 4 week season, and we hustle to the indoor lest the bucking gets too wild!