Hi guys! I have a few showman ship/breed chickens for 4-h. All 3 are bantoms, I have one white leghorn, and two black old English. Fair Is coming up in April and I just want to be prepared. The guy I bought them from spraid some mite poisen under there wings etc. but what type of mite poisen should I use, where should I get it. I looked at tractor supply but all they had was mite Poisen for horses, like, "for this many pounds, mix this much of it" but I just want some that is not harmful to the chicken. That is trusty. People use diotamatious-earth that they dust bath in but I want something that will kill the mites. Any suggestions please, every thing is appreciated, thank you!