Q: I don't know what this is on my oak tree, but is it anything I should be concerned about (see reader's photo)? Should I spray with something? A: Unfortunately, I suspect your tree has hypoxylon ...

An ancient oak tree felled in north London showed little evidence it needed to be cut down, a report concludes.

Q: The leaves on my newly planted oak tree have numerous holes, and the edges of the leaf are missing. I do not see any insects, but I am worried about the tree. Most of the tree is like this. A: Oaks ...

SPRINGFIELD, Mo. (KY3) - In a collaborative effort with the Missouri Department of Conservation (MDC) Forest Health Program, the MU Plant Diagnostic Clinic announced it will provide free testing ...

A new study shows that tiny microbes living in and around oak trees may help them survive drought, poor soil, and disease.

Q: I have a house in Houston. Does blooming of tropical trees like Bauhinia, Erythrina and Tabebuia depend on their age or size? I plant these trees in the ground. They freeze. They come back but they ...