Dwarf mistletoe, a parasitic plant, means healthy-looking trees are not always what they seem. The infection causes dense ...

Q: Can you identify this for me? [The reader sent photos.] It was on two small trees I cut down. A: Your black cherry tree had a case of black knot, a common fungal disease. When a tree is infected, ...

There are some low branches from a few shade trees hanging over my front sidewalk and driveway that I would like to prune to increase the clearance for people and cars. Is it OK to prune some branches ...