Sap is the 'blood' of a tree, helping to move nutrients from the roots to the limbs. Some sap is not unusual, but excessive ...

I got a call a few years ago from one of my readers. His Paper Bark Birch was in severe decline. From what I could see, this two-foot-diameter tree was dying. I explained the dire situation of the ...

The beetle kills trees by burrowing into their inner bark and cutting off the flow of water and nutrients. Adult beetles ...

Conservationists have been fighting a battle for the trees since 1996, when lax packaging regulations introduced an invasive ...

It looks like Halloween came early in the Tashmoo Woods. As the rest of the Island’s trees remain staunchly green in the ...

The invasive redbay ambrosia beetle has been confirmed for the first time in New York, along with the detection of laurel wilt disease in Suffolk County — a discovery that began with a Northport ...

When tiny holes appear on a tree, they often tell a story. These could either be due to harmless nesting activity of some animals, or they could be insect infestations that threaten a tree's survival.

A new study from Stockholm University reveals that spruce bark beetles, already infamous for killing millions of trees in Sweden, are also changing the forest microclimate. Using a combination of ...

MAPLE FALLS — Entomologist Glenn Kohler could see the damage to the forest from a distance: Amid an expanse of dark green firs, a whole stand of trees had gone completely brown. “It was kind of ...

Courtesy of Forest Health Highlights in Washington, Washington Department of Natural Resources, photo by William M. Ciesla The spruce budworm attacks Douglas firs and spruce trees, eating new foliage ...

Bark beetles evolved to feed on specific types of trees, leaving behind dried-out shells, as seen at Lake Granby in Granby, Colorado on May 31, 2025. (Amanda Pampuro/Courthouse News) UNCOMPAHGRE ...