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 ...

An Inland Empire city has approved a development project 450 feet away from the third oldest known living organism in the world — a sprawling, shrub-like oak tree that is more than 13,000 years old.

The Shumway Oak Grove Regional Park in Stockton launched an autumn nature walk for the community to get an inside look at how important California's historic oak trees are, especially during the fall.

It's intuitive to think that if a tree is photosynthesizing, it's also growing. But that's not necessarily so—and a new study ...

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 ...