C4, the fly stuff we are using in the pasture is a powder and I am using it on a 10' long 6" diameter big stuffed snake for lack of a better word that I believe is intended for oil but guys use them for powder also not as handy as pouring a fluid on but a little cheaper.
Its situated where they have to walk under it every time they come in for water they make oilers (expensive) and bags/snakes for powder (cheap). Now when I had them at the vet he poured some long lasting stuff down the middle their back that's the 30 day treatment it was $1.50 each animal and he put a couple fly repellant ear tags on the one that had eye surgery while he had him in the chute. fwtw
Its situated where they have to walk under it every time they come in for water they make oilers (expensive) and bags/snakes for powder (cheap). Now when I had them at the vet he poured some long lasting stuff down the middle their back that's the 30 day treatment it was $1.50 each animal and he put a couple fly repellant ear tags on the one that had eye surgery while he had him in the chute. fwtw