New research reveals that thunderstorms - not just drought or heat - are a major cause of rising tree deaths in tropical ...

The boomerang, found in a cave in southern Poland, may be the oldest in the world, dating back 40,000 years, according to ...

Trees in tropical forests are dying at an increased rate, with consequences for biodiversity, carbon storage, and the global ...

And a keychain cap holder designed to fit their new fave Summer Fridays lip balm to ensure they don't lose it when they're ...

Weakened trees become more susceptible to environmental stresses and secondary pathogens. On ash trees, the buds, leaves, and sometimes twigs may become infected.

Werner advised anyone who notices beech leaf disease on their trees to call a local arborist. “We can do fertilization and feeding to ensure the tree has all the nutrients it needs,” he said.

Scientists already knew that tree leaves can change color when a nearby volcano becomes more active, but this collaboration aims to observe the mechanism using satellite imagery. Given that there ...

Deciduous trees shed their leaves annually, losing around 40 percent of the carbon they have assimilated, and substantial amounts of nutrients in the process. But they do not have to be lost ...

An apple may not fall far from the tree, but for a leaf, it depends on its shape. Elm or apple leaves — oval and symmetrical, with few protruding lobes — fall quickly, making them likely to ...

When selecting leaves for your collection, avoid leaves damaged by insects, disease or the environment. Try to select leaves of about the same size and shape as a majority of the leaves on the tree.

Don't start stuffing eucalyptus leaves in your wallet, however. The average concentration of gold in the leaves was only about 46 parts per billion, less than 0.000005 percent of each leaf by weight.

Outdoors column: Why some trees hold their leaves through winter remains a mystery Witch hazel holds on to its leaves in Feb. in Lake County. (Photo by Steven D. Bailey/For the Lake County News-Sun) ...