In the past 15-plus years, there is no telling how many times I have answered a phone call or had someone come in to the office with the question, “My trees are dying, what is the problem?” You go ...

Q. In late spring, you wrote about canker on maple trees. The description fit the problem with our Norway maple perfectly. Our tree was planted by the builder about two years ago. We initially thought ...

Hypoxylon canker is caused by a fungus (Hypoxylon atropunctatum). Spores infect wounded branches or other open areas on the tree. The spores germinate and the fungus spreads into the sapwood of the ...

Hypoxylon canker in trees is a scary-sounding thing, right? It is a fungal disease that is common on many hardwoods. An opportunistic fungus, Hypoxylon atropunctatum, causes it. Red oaks are more ...