Man I HATE yellow flies

[Jeff K]

This has been a banner year for them. I can't even work in my shop in the evenings with the door open. I'll bet I kill 100 every night, and the next night there is a hundred more to replace them. Viscous son of a guns. Gonna have to screen in the OHDs of the shop or put in A/C. From what I understand there isn't a darn thing you can do about them except swat them.
 

[Jess from VA]

Looked them up.  Nasty. 






Biting Habits
The female is one of the most serious biting fly pests wherever it occurs (males do not bite).

There's a surprise.

Mosquito repellents are moderately effective against the adults except when the flies are very abundant or very hungry. Gloves and headnets offer the only sure means of protection. We have found deet (diethyl toluamide) to be the most effective repellent. No effective methods for larval control are known.