Horses can get parasites from grazing on grass. These parasites can cause stomach problems, diarrhea, and even colic (abdominal pain and digestive upset).
Horses should be dewormed if a parasite egg count in their feces is high enough and your vet recommends it. A healthy adult horse that has very few parasite eggs or no eggs in its feces might not need deworming more than once or twice a year. Young horses need regular deworming, because they are more likely to have parasites.
How Do I Prevent Flies?
Flies can bother horses and cause sores. To control flies, keep stalls clean and frequently remove manure (where flies often live). Many insect sprays and lotions are available for direct application to horses to prevent flies. Talk to your vet about the best options for your area.
