Dead limbs, exposed roots, and fungus are signs a tree is in trouble.

Add Yahoo as a preferred source to see more of our stories on Google. A fungus that's deadly to butternut trees has been found on the Island, and there is no known cure. (Clay Cutting - image credit) ...

Dutch elm disease, caused by a deadly fungus that spreads through the tree's roots and by a specific species of bark beetle, ...

A fungus called Mycosphaerella populorum has been infecting poplar trees across North America. Exactly how the fungus is so effective at infecting trees so rapidly and causing extensive damage has ...

Homeowners should periodically inspect their trees for warning signs. Signs of an unhealthy tree include falling bark, abnormal leaves and the presence of fungus or mushrooms. Certain tree species, ...

A fungus found in surviving trees during a 1990s outbreak is now bred into 30 million seedlings planted in Maine since 2017.

Diseases are among the major causes of tree mortality in both forests and urban areas. New diseases are continually being introduced, and pathogens are continually jumping to new hosts, threatening ...

Nature gives rise to fascinating adaptations, which can sometimes lead to organisms living in some strange situations. The relationship between bark beetles, spruce trees, and a type of fungus is a ...

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 ...