Environmental Education Specialist Rhiannon Summers, at left, shows a leaf that fell from a cherry tree to hikers John Wittman and Lucy Wittman of Bloomsburg and Peggy Black of Laporte. The bark on a ...

Q: These hard clear bubbles have formed from secretions from a few of my wild cherry trees. [The reader sent photos.] Do you think it is heat related or an indication of pending tree doom? Do other ...

The trees exchange carbon dioxide and oxygen with the atmosphere through little “mouths” in their leaves and tiny “windows” in their bark. Flowering cherry trees in spring at the New York Botanical ...