Knowledge is Power. It's not always easy to diagnose, but toxicity in horses, or poisoning can be difficult to determine, and sometimes is even harder to treat. Knowing what types of trees, plants, shrubs, weeds, and even bedding your horse could be around is the first step in preventing major health problems. Although horse's are not supposed to consume these toxic forages, it happens. Given plenty of good quality forages and access to healthy feed, a typical horse will not eat poisonous materials. That being said, horses don't read the manuals! Even consuming large amounts of certain dry or wilted tree leaves can become toxic. Know what you are feeding, and what your horse has access to.

These helpful documents listed below as pdf's are great resources.