Plumlee_2001_Vet.Clin.North.Am.Equine.Pract_17_491

Toxicosis from pesticides rarely occurs in horses and is usually the result of inappropriate pesticide use or handling by humans Organophosphorus and carbamate insecticides inhibit acetylcholinesterase and are the insecticide class most frequently associated with toxicosis in domestic animals Metaldehyde is a molluscicide and zinc phosphide is a rodenticide both of which have caused toxicosis in horses All three of these pesticides affect the nervous system of horses and can be fatal if not treated promptly