Santa Clarita Valley oak trees are being invaded by the goldspotted oak borer; an insect named for its iridescent black shell with gold spots that burrows underneath the bark of oak trees.

Does your grand oak look a little rough? Is your oak tree dying? There isn’t a clear answer for every oak. Several culprits could be the cause of your oak trees decline. Anthracnose, bur oak ...

She's concerned with slowing its march north into the Sierra Nevada, where the trees are already contending with the Mediterranean oak borer, another pernicious beetle, and sudden oak death ...

The invasive emerald ash borer has been confirmed in Eden Prairie for the first time. The city of Eden Prairie was notified by the Department of Agriculture about a month ago that on a residential ...