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 ...

Losing a tree can be stressful for homeowners, financially and emotionally. For all the years it takes a tree to mature, it is devastating for one to die rapidly because of disease. This is true with ...

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.

Dead trees line the Salt Creek and Platte River near Mahoney State Park in June 2025. Horticulturists with the Nebraska Game and Parks Commission were stumped when they started seeing significant ...

There are five invasive diseases that Michigan wants the public to be aware of. (DNR, USDA Forest Service, MDARD, Bugwood.org, OSU Extension) There are five invasive diseases that Michigan residents ...

HARRISBURG, PA. -- Thousand Cankers Disease has been detected for the first time in Pennsylvania, and a quarantine restricting the movement of wood from Bucks County and other states known to have the ...