Review on Defy Fly Dog Collar Large by Britney Matthews

I bought these as a last resort because the flies in my house are terrible thanks to the manure plant that is upwind. They smell of strong citronella and the flies didn't care at all. However, I'm pretty sure my dogs showed me the middle finger and side eye and plotted to kill me for putting that collar on them. They hated every second of it and now they don't seem to trust me. Don't buy this, it won't work and your dogs will hate you for it! I planted the collar in a place where flies seem to congregate and land on it! So either the flies in my path don't have a sense of smell. Or this crap doesn't work.