A Pennsylvania state forestry expert says native pests are causing troublesome impacts to several valuable tree species.

The latest photo challenge calls for you to take and send in your best pictures of trees. Here's how to enter.

Leaves are probably the most common feature used to identify trees. But in winter, when so many trees have dropped their ...

A paper provides significant insights into China's tree population: by 2020, the average tree density in China was ...

Welcome to Ask the Arborist, where we tackle your tree questions with a mix of science, experience and just the right amount of caffeine. Now, I know it’s still winter, ...