blister beetle

The blistering agent blister beetles use as a defense mechanism is toxic to horses. (Photo by Todd Johnson, OSU Agriculture.)
Horses, Livestock

Alfalfa producers and horse owners fight off blister beetles

Blister beetles in alfalfa cut throughout the summer months are an ongoing concern for horse owners in the southern and eastern regions of the U.S. The consequences can be deadly if a horse eats a blister beetle, alive or dead, while munching on the hay.    Read More