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 ...

Brown birch trees in both Southcentral and Interior Alaska this summer aren’t signaling an early fall. Rather, they are subject to an infestation of small, leaf-munching larvae. Alaska is in the midst ...

Click to open image viewer. Landscape and botanical sketch showing a view of two birch trees in the woods of Vermont during Autumn. Visible just beyond a bush's red and yellow leaves at lower right, ...

It started with a tiny Scots pine growing out of a huge old birch, but soon I find more examples of this strange magic ...