Scientists are stepping up efforts to save black ash after invasive emerald ash borer beetles wipe out trees across parts of North America. Researchers cultivate large quantities of black ash seeds and evaluate genetic variation to help preserve the species’ remaining diversity and support future forest restoration.
Work draws on genetic studies of seeds collected across black ash’s geographic range and stored in seed banks. According to reporting, scientists use tools including artificial intelligence to assess thousands of seeds and identify regional differences. A research team also creates experimental “common gardens,” large plantings designed to help sustain the species and, in time, produce seeds that could be used for reintroduction.
While outlets emphasize different aspects—seed cultivation and genetic screening in one case, and genetic diversity research plus common-garden experiments in the other—they describe the same overarching strategy: maintaining the broadest possible genetic base for black ash to improve future breeding and restoration success in the U.S. and Canada. The work is framed as a long-term safeguard against further declines.
