Barry, that's what I was doing, but with the above average rain we've started having the past several years, the Permethrin just wasn't lasting. That was the main reason for buying a Vet Gun.
I bet it has more oil base to keep the control on the cattle longer.
When I use Ivermectin our on, I watch the forecast pretty good too. Expensive stuff to just get washed off.
I'd have to go hunt up and find the fly control balls, and see what it is they use to control flies. But, it is like the Ivermectin, in that it is absorbed into the animals body, and works that way. There are several different formulations, allowing you to switch drugs, and I believe one even has some parasite control in it, in addition to fly control.
The Vet Gun is pretty cool to use, especially if you like shooting things. I usually drive the UTV, and my son gets to do the shooting.
