Foliar sprays, which translocate through the leaves to the roots, are the best way of controlling locoweed. A mixture of picloram and 2,4D is the most common treatment of locoweed. It has recently been discovered that a species of weevil can eat the roots of the plants and successfully kill the weed.

How do I get rid of milkvetch?

There is no known treatment for milkvetch poisoning.

Can horses eat locoweed?

Locoweed can poison horses, cattle, sheep, goats, elk, and even cats. Signs of poisoning do not become evident until an animal has consumed a significant amount of the toxin, and usually takes several weeks to do so. Horses appear to be more susceptible to the toxicity of locoweed than cattle or sheep.