Shortly before 2000, California oaks began dying. The University of California launched an investigation. What was causing this plague, and how might California oaks be kept healthy? A water-borne ...

Campus is currently undergoing an outbreak of California oak moth caterpillars, according to Peter Oboyski, executive ...

It’s less than a half-inch long but it can fell a giant oak tree in no time. The goldspotted oak borer, GSOB or Agrilus auroguttatus, is a 0.4-inch bullet-shaped beetle with six golden spots on its ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO (FOX 5/KUSI) — An invasive beetle ...

Volunteers paint lime wash on an oak tree that is dying from a beetle infestation in Silverado Canyon on Thursday. (Allen J. Schaben / Los Angeles Times) The tree was dead. Ron Durbin, who trekked ...

Defying its typical seasonal pattern, my beautiful backyard oak tree — which, at over 300-years-old, predates the neighborhood — recently shed its leaves unexpectedly. Upon a thorough evaluation ...