The urgent race to save North America’s iconic trees imperiled by invasive pests and pathogens

Read an article by Eric Aldrich about The Nature Conservancy’s collaborative initiative Tree Species in Peril, February 15, 2024

“In waves across the land, some of North America’s iconic tree species are dying from a myriad of non-native pests and pathogens. Pests such as emerald ash borer and hemlock woolly adelgid are capable of—and in some places are—removing entire species of trees from whole regions in a few short decades.”

“As these pests and diseases spread, researchers are racing for ways to save the affected tree species. One approach centers on the fact that some individual trees manage to survive these threats. These “lingering trees” may have genetic resistance to the pests and pathogens—which means they might be the key to cultivating resistant trees that can grow into future healthy forests.” E. Aldrich.

Monitoring hemlock health, Mohonk Preserve, NY, photo by R. Wildova.