Paul D. Peterson

Dr. Peterson has a diverse background in history and biology, with graduate degrees in both fields. He has written or edited five books on the history of plant pathology and more than forty peer-reviewed and popular history articles for science and history publications. He has served as the official historian for the American Phytopathological Society since 1999.

Barberry war: Why the USDA spent more than 50 years trying to eradicate this thorny bush in Minnesota

By Paul D. Peterson

Dec. 2, 2019

The common barberry is an introduced plant species that was once grown as a popular ornamental bush throughout the northern half of the US.