Exposed tree roots can damage sidewalks and foundations, become a tripping hazard, and make lawn mowing difficult. Learn how ...

If you've ever wondered what type of tree was nearby but didn't have a guide book, a new smartphone app allows users with no formal training to satisfy their curiosity and contribute to science at ...

What you can do about yellownecked caterpillars: if you have an oak tree suffering an infestation, consider dusting the ...

The tree in question is Mancana ash - a variety of Manchurian ash. I wrote about problems with this tree in July of 2009. Here is a new one.

Tar spot is caused by a fungal infection. In spring, spores are released from the fungus. They become airborne in the wind, ...