Have you noticed discoloration on your maple tree leaves this year? You aren't the only one. Here's what you should know ...

Sooty Bark Disease can kill native and non-native trees. Its spores can cause an allergic reaction in people. A Tacoma-based study needs citizen scientists.

Q. My maple tree has black spots on the leaves that just appeared recently. Should I be concerned about this? What should I do?

This fluctuation sets up stress movement, especially in areas where the bark or older wood is already weak or cracked, perhaps from disease or mechanical damage.

Here are some questions asked by other gardeners. What’s yours? Q: My large old maple tree has black bark on much of the trunk. Is this a disease that would make it more likely to fall?

Question: we have several maple trees in our neighborhood afflicted with this black spot (see attached photo). What can we do to protect our maple trees? Anwer: while it is difficult to confirm a ...

These photos show black walnut bark from two very different growing sites. The blocky, alligator-hide bark pattern is often an indication of slow growth and may result from a tree growing on a very ...

Japanese maples add a touch of elegance and color to your yard, but you should know about the issues affecting these trees ...

A beloved sugar maple slowly succumbed to disease. Today, it lives on in a new form.

The black bark patches in trees is what distinguishes them as having the sooty bark disease. Not to be confused with lichen or moss that is often on trees and is harmless to them.

Sooty Bark Disease can kill native and non-native trees. Its spores can cause an allergic reaction in people. A Tacoma-based study needs citizen scientists.

The black bark patches in trees are what distinguish them as having the sooty bark disease. Not to be confused with lichen or moss that is often on trees and is harmless to them. Clare Grant ...