Our native oak trees face a new threat. In November 2019, scientists in Calistoga discovered tiny symbionts — an insect-fungus team — killing mature valley oak trees (Quercus lobata). It was the first ...

Defying its typical seasonal pattern, my beautiful backyard oak tree — which, at over 300-years-old, predates the neighborhood — recently shed its leaves unexpectedly. Upon a thorough evaluation ...

Majestic oak trees have been capturing attention long before travelers on the Oregon Trail stopped their wagons and set up their new life. Indigenous people nurtured oaks for edible acorns, and ...