19th-Century Erosion-Control Tree Now Major Invasive Species in U.S.

A tree species introduced 200 years ago to combat river erosion has become one of the most difficult invasive species to eradicate in the U.S., with rapid proliferation since the 1930s-1950s. The report highlights the long-term ecological consequences of past land-management decisions, though specific species and affected regions are not detailed. This underscores ongoing challenges in invasive species management and ecosystem restoration.