Add Yahoo as a preferred source to see more of our stories on Google. Getty Images There’s a reason it’s called the Mighty Oak: Oak trees are stately trees that can live for hundreds (yes, hundreds!) ...

University of Missouri Extension has a free program to identify oak tree diseases affecting trees across Missouri. See how to ...

A massive ancient oak tree linked to the legend of Robin Hood may have been loved to death. The 1,200-year-old Major Oak in ...

Oak trees produce acorns in abundance every few years in a process known as mast seeding. Two years later, Lyme disease follows like clockwork. As hikers return to lush trails each summer, ready to ...

Majestic oak trees have been capturing attention long before travelers on the Oregon Trail stopped their wagons and set up their new life. Indigenous people nurtured oaks for edible acorns, and ...

When Illinois landowners noticed tree deaths and diseases on their properties ramp up in 2017, they suspected industrial agriculture. A survey found herbicides in 90 percent of tree tissues Christian ...