University of Minnesota Extension has published an article on eradicating buckthorn from your landscape. Those of you who have this problem should read this article.
"Understanding the basics of buckthorn biology will help you to control its spread so that you have a healthy woodland and crop field. Despite the invasive nature of buckthorn, many landowners have had success in controlling it, but only after choosing the appropriate management techniques along with consistent follow-up treatments."
Learn more about eradicating buckthorn.
Image attribution: Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>, via Wikimedia Commons.