Trees add beauty, shade, and value to a property, but they also require proper care to thrive. Pests and diseases are two major threats to tree health, and if left untreated, they can weaken or even ...

Santa Clarita Valley oak trees are being invaded by the goldspotted oak borer; an insect named for its iridescent black shell ...

Oak Origins: From Acorns to Species and the Tree of Life by Andrew L. Hipp. Illustrated by Rachel D. Davis. University of ...

The tree disease that exploded in Bay Area forests three decades ago, stunning residents with vast die-offs in parks and neighborhoods before slowing, has opened a new front with a second, potentially ...