Lichens survive in a very wide range of habitats worldwide. Amazingly, more than 400 species can be found in Maryland.

If you spot tiny holes and piles of sawdust on your tree, bark beetles could be the culprit. Unfortunately, the solution ...

As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your ...

American beeches have been suffering recently from a disease widespread in both Connecticut landscapes and forests.

Microbes living in tree bark consume vast amounts of climate-related and toxic gases, according to new research published Jan. 8 in Science. In the past, tree bark was considered little more than an ...

On the northwest corner of Manito Park, dozens of ponderosa pines appear to stand strong. Joggers and dog walkers weave ...