The black tips on leaves can be found on many different species of trees — not just oaks — but they transmit the pathogen ...

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

the forest floor is lit by the spires of flowering vanilla-leaf spangled with starflowers, along with coralroot orchids. The ...

Fall leaves get a warm welcome from Christie Hunt. The River Forest, Illinois, resident rakes them into her flower beds, ...

The DNR said oak wilt is first identified when the trees’ green leaves turn yellow or brown around the edges and begin to ...

A UC Berkeley-led citizen science project has discovered at least four outbreaks of a new, potentially more aggressive form ...

Twice a year, I hike a favorite trail in Oregon’s Cascade Range. I have done this for over 20 years, timing my hikes for early spring and fall. The first ...

As you hike through your corner of the world, or as you tend your home garden, you might spare a moment of gratitude for the ...

With the wind we experienced last week, most of the deciduous trees lost their leaves. However there are some oaks and ... years that Kilmer wrote the poem about a particular large white oak near his ...

Oak Park and River Forest High School seniors, Poppy Booth and Elora Cianciolo, will be attending the United Nations climate ...

As the leaves start to turn and the air gets that crisp chill, it’s the perfect excuse to swap out your summer cocktail ...