Veterinary hosts Sabrina Barnwell and Mairead Leahy speak with parasite expert Nikki Wall about the new prescription-only rules for horse wormers, why parasite resistance is accelerating, and how outbreaks are affecting horses and herds.

The episode covers practical advice on pasture management, risk-based testing, working with your vet for bespoke parasite plans, and myth-busting common assumptions like relying on calendar worming or single fecal egg counts.