Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey Tree Expert Company in Menlo Park discuss a tree-related topic from general care and planting tips to how ...

Ron Durbin, who trekked with a group into a rugged Santa Clarita canyon, quickly spotted nearby trees pockmarked with D-shaped “exit holes,” a deadly calling card. This was the work of the goldspotted ...

While walking around our property this week, I came across two interesting things going on with our pin oak trees. The first thing that caught my eye was what looked like a white grape growing from an ...

This fallen oak branch in Napa County was infested with Mediterranean oak borers. The beetles are known to make distinct fork-like galleries as shown. Courtesy Curtis Ewing, Cal Fire Invasive beetles ...

Oak trees around Minnesota have suffered from bouts of heavy precipitation and drought — conditions that make them more vulnerable to two-lined chestnut borer, a beetle that eats the inner bark of oak ...

The Mediterranean oak borer, a miniscule beetle no bigger than a sesame seed, has been discovered in trees around the Portland area. The invasive pest native to Europe, the Middle East and North ...

Question: Yesterday I read that “oaks are a keystone species”. What exactly does that mean? Answer: A keystone species is a plant, animal or microorganism that is vitally important to its environment.

INJURY ASSOCIATION OF NEW YORK STATE TEAM. THE 160,000 ACRES OF BERNHEIM FOREST AND ARBORETUM ARE HOME TO COUNTLESS PLANTS AND ANIMALS, AND AS OUR SAM CARTER DISCOVERED, THE FOREST NOW HAS AN EXPANDED ...

Houston’s landscape may look browner than usual after this week’s frigid spell, but where the environment is healthy, there is no such thing as the ‘dead’ of winter. Hundreds of species of creatures ...