Trees across the United States are under siege from invasive insects and pathogens introduced through global trade, with epidemics escalating across numerous species. The influx of pests via live plants and wooden packaging has led to widespread tree mortality, transforming forests into degraded landscapes. Scientists warn that the loss of tree species triggers cascading ecological effects, impacting wildlife, water filtration, carbon storage, and climate resilience.
The northeastern U.S. has become a hotspot due to high import volumes and diverse tree populations. The emerald ash borer, a bright green beetle, has devastated ash trees since its detection near Detroit in 2002, leading to the endangerment of all six major ash species and billions in removal costs. At sites like Mohonk Preserve in New York’s Hudson Valley, hemlock forests are collapsing, leaving dead trunks and disrupted ecosystems.
Experts emphasize that trees are foundational to planetary energy flow and biodiversity, with each species loss creating irreplaceable gaps in forest function.
Source: New York Times Top Stories · Summarized by HeadlinesBriefing