Dear Neil: What could be causing these spirals of holes in the trunk of my Lacey oak? The tree seems to be healthy. It had small acorns that dropped early, but that might be due to last winter’s cold.

Occasionally homeowners will notice small holes in the trunks of landscape trees. This may not mean impending death to the tree, but it’s not good. The presence of holes usually means that an insect ...

A question for Dan Gill: I have a live oak tree that I planted in my backyard about 14 months ago. I've just noticed holes pecked into the bark in a pattern of rows. Is this damage from a woodpecker, ...

Yep, those straight rows or columns of holes in the trunks and limbs of your tree are compliments of the pretty sapsucker woodpecker. These pretty birds are seeking the sugar that has been ...

It's one thing to cut down an old tree, and another (challenging) thing entirely to remove the stump that gets left behind.

Oregon officials have found the Mediterranean oak borer in six counties across the valley, just as another pest is killing ...