My birch tree has developed a yellowish color to the leaves. It also has been dropping a lot of brown leaves over the last couple of weeks. Are these two problems connected? What is wrong, and what… ...

“What is wrong with my birch tree? I am seeing some odd-looking patches on the leaves.” — Deb Schultz, Evanston The pinkish-red spots on your birch’s leaves appear to be eri… ...

Also do not prune in spring, as it will actively harm birch trees. ‘They are pumping materials through the xylem (and phloem), if pruned, they will “bleed” excessively, potentially attracting disease ...

It’s the time of year when yellownecked caterpillars will soon engulf unprotected river birch trees. These pests also feed on blueberry, hickory, maple and oaks, but I have only seen ...

Look for the emergence of chartreuse, red and yellowish leaves in oaks, maples, willows and ash trees, along with sprinkles of white blossoms from plum trees and other wild fruits.

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 ...

White birch is commonly identified by its famous peeling bark, which is widely seen each season. If needed, this species can ...

The tree still looked full through the summer, but I definitely can tell that there are fewer leaves to deal with this fall. (e-mail reference) ...

Learn about the four most common birch trees in North America and what to look for to identify them.

This makes for five months that trees hold leaves and seven months that they are without them. (Some red oaks, usually young ones, will keep their brown leaves on for much of the winter.

He says people can generalize when it comes to types of trees. Walnut and birch trees tend to lose their leaves earlier than others. Oaks often hang on for a while.

A black crow sits upon a Birch tree almost devoid of leaves in Southwest Portland. Oregonian file photo. LC- The Oregonian ...