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 ...

MISSOURI (KSNF/KODE) — University of Missouri Extension’s Plant Diagnostic Clinic, in partnership with the Missouri Department of Conservation (MDC), is offering free testing for all common oak tree ...

ST. LOUIS — The next time you're outside in your neighborhood, look up. Among the branches of oak trees across Missouri, people are noticing more growths than before. They're called galls, and they're ...

STRONGSVILLE, Ohio -- Now that the first frost has occurred, it is time to start thinking about pruning oak trees to minimize the spread of oak wilt, a lethal disease affecting oak trees that is ...

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 ...

Oak trees are a staple across the United States, offering shade, beauty, and supporting the ecology of many residential landscapes. As a homeowner, they'll also add value to your property if they're ...

January is not typically the time of year when we think about doing yard work, unless you consider removing outdoor Christmas decorations yard work! However, due to a deadly disease which is spreading ...

Texas forest officials are trying to stop residents from pruning their trees in the new year to guard against a deadly tree disease known as oak wilt. Winter is typically the best time to trim trees, ...

A drive to the mountains in San Diego County means you're surrounded by nature, trees especially, which have been facing a major threat from something so small you might not even notice it. You will ...

Dear Neil: One of my live oak trees was ravaged by the little wooden “marbles” on its twigs last summer. They’re still there, and I’m wondering if they are harmful to the tree. Is there anything I can ...