Bark beetles moving between trees routinely carry two fungi that are responsible for the Dutch elm tree disease outbreak.

OAKLAND (KPIX 5) -- There's new color in the East Bay Hills but they are not fall colors. The changing leaves may be the result of a mysterious and deadly tree fungus attacking acacia trees all across ...

Oak wilt is a potentially deadly disease caused by the fungus Bretziella (formerly Ceratocystis) fagacearum. First discovered in the 1940s in the Mississippi River Valley area, the disease is found ...

Spruce bark beetles don’t just tolerate their host tree’s chemical defenses—they actively reshape them into stronger antifungal protections. These stolen defenses help shield the beetles from ...

PITTSBURGH — An invasive fungus is wreaking havoc on local oak trees. Oak wilt disease is fast-moving, killing some trees in less than a year. Local experts showed Channel 11′s Lisa Sylvester what to ...

OAKLAND (KPIX) - Wildfire fuel is increasing at an alarming rate in one part of Alameda County. This weekend there is an increased concern of fire danger in the East Bay hills and as if that wasn't ...

Islanders are being urged to take precautions to prevent the spread of a tree fungus that has now been detected in three areas of P.E.I. Butternut canker is a fast-spreading disease that attacks ...

The past few years have been tough on shade trees because of hot weather, drought, wind and severe freezes. This combination of environmental challenges has resulted in diseased trees, dead branches, ...

This story was originally featured on Outdoor Life. You might not expect tree fungus to be particularly useful, but—surprise—it’s often very handy. If you have birch or black locust trees growing near ...

We visit an orchard where researchers are breeding Chestnut trees they hope will one day fight off a fungus that's been killing the iconic American tree for more than a century. And now a checkup of ...