Emerald ash borers first arrived in Middle Tennessee in 2014 and have spread to at least 66 counties, authorities say.

A glimmer of hope has emerged for Britain's beloved ash trees. According to a new study published in Science, some wild ash ...

And puzzling. While I've never kept a calendar of it, I'm pretty sure that mesquite and ash trees normally should drop their leaves sometime before mid-December. Say in October or November.

Ash trees are typically between 50 and 80 feet tall, and there are a few different varieties including the white ash tree, green ash tree, and black ash tree. Most of them have five to nine leaves ...

If the ash borer wipes out those trees, it leaves the entire ecosystem vulnerable if a maple tree disease were to come along. Like any work that involves trees, though, it isn't going to happen ...

Small trees that could fit this space include kidneywood, Texas mountain laurel, Arizona rosewood, little leaf ash, and leather-leaf acacia. These may not give the shade you desire.

Beech leaf disease-causing insects were identified in Ohio around 2013 and pose a further threat to Wisconsin beech trees, which are already prone to the deadly beech bark disease, which was found ...