Ragwort Poisoning This weed is covered by the 1959 Weeds Act, amended by the Ragwort Control Act 2003 which means you may be issued with an ORDER to control the weed on your property. Obviously as it is toxic to your horse, it makes sense to keep the risk to a minimum by keeping it under control. Each ragwort plant can produce up to 120,000 seeds so it makes sense to deal with them before they seed. The picture shows...