The California oak moth is a creature of extremes. Most of the time these small white insects fly completely under the radar. But every once in a while, they go on a breeding frenzy that is impossible ...

Have you ever walked in the shade of a mighty oak tree? In late summer or fall, you may find an odd little brown woody ball attached to a fallen twig. Look up into the tree, and you may see more ...

Oak wilt, a lethal tree disease in which species such as Mizunara and Kashiwa oaks are attacked by insects and eventually d ...

The goldspotted oak-borer, an invasive beetle responsible for killing 200,000 trees in Southern California, is now present in ...

In the Dec. 18 edition, I wrote about the reasons why many of our oak trees are dying at a relatively young age. This week we’ll delve into what we ...