I realize that no fly spray is going to work 100%...BUT I would like to know what semi-works for you all! I don't have issues with reapplying fly spray every several days when needed. Flies here are ALREADY soooo bad!
I'm trying Permethrin - 10 Concentrate Livestock & Premise Spray. It mixes 1/8 oz to a gallon of H2O. It supposedly repells and kills all types flies, mosquitoes and ticks. I sprayed my 2 gelding last week and they haven't seemed to be bothered by anything much so far. Its suppose to last 2 -3 weeks. I decided to try it because my guys were getting ticks bad.