Add Yahoo as a preferred source to see more of our stories on Google. Large oak tree in front of nice neighborhood Oak trees have been around for more than 50 million years, with individual trees ...

Many coast live oak (Quercus agrifolia) trees are showing unusual browning in their canopies in the last month or two. If you look carefully, you may see small, crescent-shaped galls forming on the ...

Gardening season is underway, and you may have questions. To ask one, simply go to the OSU Extension website, type it in and include the county where you live. A photo is very helpful. Q: Our oak tree ...

Howard Garrett Are your live oaks dropping leaves? Are they in trouble? Dropping leaves, yes. In trouble, probably not. Evergreen trees generally drop their leaves yearly, but usually in the spring ...

For those of you who aren’t aware that live oak trees drop their leaves every year despite the fact that we describe them as evergreen, look at the ground now. If you have live oak trees, they have ...

With so many inquiries from people concerned about a particular problem, it’s time to write about it: Coast live oaks in and around Napa with leaves dropping and looking diseased. The upper surface of ...

These large, long-lived trees support more life-forms than any other trees in North America. And they’re magnificent. By Margaret Roach When I arrived years ago at the piece of land I now garden, I ...