Q: I have a beautiful green ash tree in my front yard and hope to keep it protected from the ash borer as long as possible, but today I noticed a lot of leaves have fallen off. There are little dark ...

Q: I recently noticed a black, tar-like patch on my tree trunk, though it’s not tacky like actual tar. Are these insect eggs? Dried sap? Do I try to scrape it off? The tree has lichen but I don’t ...

A new tree disease has spread in forests in Massachusetts, joining invasive pests and climate change as top priorities for foresters to address. The state has found beech leaf disease in more than 90 ...

Waiting until the leaves drop in fall is a rule of thumb for pruning shade trees, mainly because you can see bare limbs better, and the job is less “messy” without leaves attached to the cut branches.

Q: Our chitalpa tree underperformed last year after 10 years of growth. This year, two-thirds of it is dead. How do I tell if it was verticillium wilt disease or bacterial leaf scorch disease that ...

SWAMPSCOTT — The grand beech tree has stood for 100 years in Linscott Park, providing a reprieve from the sun on hot days for children and adults who visit the grassy spot across from the ocean. It ...

Q: I saw your newspaper column and wondered if you could help me. A year ago I lost a grapefruit tree. It started with one branch rotting and continued to the trunk of the tree. Now the back branches ...

Disruptions likely in Darcy Lever as council contractors work to combat a deadly tree disease.

Large trees often develop surface roots that can damage sidewalks, mower blades, and tree health. Mulch 2–3 inches deep to cover roots safely and reduce maintenance without harming the tree. Never cut ...