Quick Take The emerald ash borer (Agrilus planipennis) was first identified as an invasive species in the US in 2002. It is ...

An ash tree on a busy Glasgow street which won the UK tree of the year in 2025 is competing do the same in a pan-European competition. The Argyle Street Ash won the Woodland Trust competition last ...

There’s a tree killer on the loose in Oregon, and nobody knows how to stop it. An invasive green beetle called the emerald ash borer arrived in the Midwest from Asia, and it’s killed over 100 million ...

DENVER — The emerald ash borer, an invasive wood-boring insect, has been detected in Denver for the first time, the city said Thursday. The invasive beetle infests and destroys Native American species ...

A Cornell and Nature Conservancy 'Trees in Peril' conservation project is propagating ash trees resistant to emerald ash borer. If successful, the long-term project looks to reintroduce resistant ...

Throughout this month, K-State’s Division of Facilities will continue removing trees on campus to prevent infestations of Emerald Ash Borer (EAB). This invasive insect, named for its metallic green ...

… but our independent journalism isn’t free to produce. Help us keep it this way with a tax-deductible donation today. In 2009, an invasive tree pest was discovered on an ash tree in St. Paul. This ...

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 ...

Last month, Berthoud Town Forester Paul Furnas finally got the bad news he’d been dreading for years. A local arborist meeting with a resident on the north side of town about a problematic tree on her ...

There has been much global discussion about the best ways to manage Earth's forests in an era of climate change and more ...