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For decades, horse owners followed routine rotational deworming schedules. That approach fueled drug resistance in equine parasites, leaving fewer effective options today. Smarter management now relies on testing, timing, and targeted treatment.In this episode of Equine Innovators Dr. Martin Nielsen, professor of equine clinical sciences at Aarhus University, in Denmark, shares insights from decades of research that shaped modern parasite control. He explains why elimination of equine internal parasites is not possible, what mistakes owners still make, and how veterinarians and farm managers can adapt their programs.From tapeworms in adult horses to ascarids in foals, Nielsen outlines today’s biggest concerns and the evidence-based strategies that help preserve drug efficacy for the future. He also previews emerging diagnostic tools that could transform parasite management in the years ahead.Tune in to learn how science-driven parasite control protects horses’ health and keeps deworming drugs effective for th