An invasive, tree-killing pest has made its way to Portland, spelling trouble for the many native ash trees that cool ...

A tiny beetle known for decimating ash trees throughout North America and Europe has been discovered for the first time in Portland and has spread to new sites in several other counties where the ...

WISCONSIN (WJFW) — Invasive species have always hurt Wisconsin forests, but one beetle is causing serious damage to ash trees ...

The Emerald Ash Borer has been detected in Denver nearly a decade after city officials began preparing for the invasive wood-boring insect. According to the City and County of Denver, the EAB was ...