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 ...

One of the easiest ways to tell a red oak from a white oak is by looking at the leaves. Red oak leaves have pointed lobes and white oak leaves have rounded ones. (Adobe Stock / Field & Stream) Leaves ...

Question: We noticed a difference in the oak trees. Which one greens up first with the glossy leaves and which one produces all the fluffy stuff? Answer: Most years there it is a matter of weeks ...

The leaves are down, winter is upon us, and that means it’s prime time for pruning oak trees, which can be infected by the oak wilt fungus if they’re pruned during the high-risk period mid-March ...