Once the hallmark of a rural idyll, our English elms were almost eradicated by the devastating fungal infection of Dutch Elm ...

The tree disease that exploded in Bay Area forests three decades ago, stunning residents with vast die-offs in parks and neighborhoods before slowing, has opened a new front with a second, potentially ...

Soggy weather on Saturday, Nov. 9, didn’t dampen the enthusiasm of a self-styled tree-planting brigade. Tree partisans met at ...

The spotted lanternfly has become invasive in central Ohio. Here's how to find the egg masses and help decrease the species ...

Pruning correctly can lead to healthier and more productive growth, but it's crucial to do it at the right times of the year.

A tree risk assessment identifies tree dangers early to protect your property and family. Learn what happens during an ...

A deadly new oak-tree disease can be prevented by pruning them in the dormant season (if needed) instead of spring or summer.

Now, researchers are in a race against time. They say most of the vast ‘ohi‘a forests on Hawaii island will be gone in the ...

From now through the end of December is the time of year to inspect your trees for Sudden Oak Death. The mold pathogen that causes Sudden Oak Death, phytophthora ramorum, is most active during wet ...

A native Pennsylvania hardwood tree is facing extinction. Beech trees are being attacked by two separate diseases – one moves ...

Dormant pruning, trimming trees and shrubs during the period when they are not actively growing, typically occurs in late ...