Western oak bark beetles are small, about 1-2 millimeters in length…this beetle itself bores into the tree. It attacks trees under major drought stress, and they start at the top of the tree.

The Minnesota Department of Agriculture has quarantined Carlton County after discovering infestations of an invasive ash-tree killing beetle across the southeastern portion of the county. Even though ...

A Pulitzer Prize-winning weekly covering West Marin, including the towns of Point Reyes Station, Inverness, Bolinas, Stinson Beach, Marshall, Nicasio, Lagunitas, Woodacre, San Geronimo, Forest Knolls, ...

As property owners and state foresters across Northeast Michigan continue to remove damaged or downed trees this summer from ...

Have you ever paused beneath a towering oak or maple and wondered if that rough, gnarled bark is hiding secrets? What if I ...

Hundreds of volunteers across five counties participated in the first Goldspotted Oak Borer Blitz, surveying oak trees for signs of the invasive beetle and contributing valuable data to help protect ...

The discovery of Mediterranean oak borers in Novato has prompted an alert by the county agriculture department.

The discovery of Mediterranean oak borers in Novato has prompted an alert by the county agriculture department.

Volunteers study the bark of an oak tree during the Goldspotted Oak Borer Blitz. Photo by Douglas Morrison Making an example of the beetles Leaders of the San Diego County blitz brought several ...

Is this caused by beetles? We want to save our tree. Dear Reader: I can’t tell if the bark loss higher up on the trunk is on the same side as the stub of a branch at the base.

The Mediterranean Oak Borer (MOB) is an invasive ambrosia beetle that infests several species of white oaks in California: valley oak, blue oak, and Oregon oak. The beetle is spreading rapidly in ...

DNR forestry officials urge the public in ice storm-affected areas to salvage and clean up as much affected pine as possible before June to reduce bark beetle regeneration.