Add Yahoo as a preferred source to see more of our stories on Google. A western pine beetle rests on a sap mound on a pine tree. - Charles Wollertz/Getty Images A thriving pine tree is a thing of ...

A new study reveals oak trees delay sprouting leaves by 3 days to avoid being infested by hungry caterpillars, after it ...

Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study from the University of Eastern Finland shows. Led by Dr Samuli Junttila, ...

Like many trees, ash trees undergo leaf shedding each fall and winter. Unlike other trees, ash trees are specifically targeted by a pest: the emerald ash borer. These creatures are emerald ash borers, ...

Q: I have been cutting off the dead branches on borer-infested trees. Should I burn or dispose of these dead branches? A: Flat-headed borers can get in the sunburned limbs and young trunks of peach, ...

The trees' clever tactic to outwit potentially deadly predators was detected by scientists in Germany using satellite data.

There’s a tree killer on the loose in Oregon, and nobody knows how to stop it. An invasive green beetle called the emerald ash borer arrived in the Midwest from Asia, and it’s killed over 100 million ...

Passers-by should savor their last glimpses of the massive, centuries-old valley oak at the corner of Pope Street and Chiles Avenue. The infested tree could be removed any day. Carlos Uribe, an ...

Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study shows. Bark beetle-infested spruce trees begin to dry out already before ...