I’ve got horses and know that the fields around us have grass mites in summer. It’s not normally a problem for my old dog as she refuses to go in the fields anyway! My new puppy however is out there a lot and has started getting itchy. I have bought some new food incase it’s related but the horses have started itching too so it’s probably the arrival of the grass mites again. Has anyone got any tips, best products etc? I know Frontline is supposed to be good but wondered if a spot on type treatment may work? He loves running round out there and I don’t really want to stop it.