Black Flies

Mo's OBX Skeeter Beater works and Hawaiian Tropic Dry Oil aerosol spray works as well, but you will need to reapply it often. Long pants are best if you can wear them.

Permetherin is to be only applied to clothing and then allowed to dry. DO NOT apply directly to you skin like Off, Skin So Soft, Repel, etc.

A Thermacell may work if you are stationary for longer periods of time like sitting in a beach chair as long as there is not a lot of wind, but if you are up and walking about a lot, it will not help much

As far as Permethrin goes, I make my own. I get a 10oz bottle or 10% concentrate from Tractor Supply or Southern States for $10 and add 1oz to 1gal of water and you have an approximate .5-.6% solution, that is the same as you buy in the 6oz bottle at Wally World for $8-$12. I can make approximately 10 gallons for the same cost of a 6oz-8oz can from Wally World.