The pinkish-red spots on your birch’s leaves appear to be erineum patches, which are a type of gall caused by very tiny eriophyid mites feeding on the leaf tissue. You will need a microscope to see ...

Q: Can you help me figure out what’s likely going on with this river birch tree? The tree has been dropping leaves incessantly since about April/May, hundreds per day. Should this tree be dropping its ...

Q. (My) birch tree, planted many years ago, has never really grown full. In the spring, it will get tiny green leaves but (it’s) still very airy and not full foliage. We’ve been told not to prune it.

When it comes to spring beauty in the tree world, the showy explosions of crabapple, apple, plum and cherry tree blossoms get all the attention. But when you slow down to look closely, you’ll discover ...

The calendar indicates that it’s spring, and despite occasional freezing temperatures and lingering patches of snow, the return of extended daylight confirms this change of season. Last year, a chance ...