If caterpillars have munched through a lot of an oak tree’s leaves one year, then, the following spring, the tree’s buds open three days later. This delay means the caterpillars don’t have food ...

For years, conducting an urban tree inventory was a luxury only large, highly resourced cities could afford. A new AI-based approach not only brings this capability within reach to smaller cities but ...

Scientists use tree rings to analyze centuries of droughts, climate change Scientists at the University of Arizona's tree-ring research lab study the rings to learn about climate changes throughout ...

You probably aren’t watering or pruning the 75-foot oak or maple in the front yard, but mature trees aren’t maintenance free. By Sal Vaglica Homeowners who plant trees know how crucial care is during ...

Trees may look passive, but they’re equipped with complex defense systems honed over millions of years. Many species release toxic compounds, bitter sap, or airborne chemicals to deter insects and ...

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The rise in tree mortality is troubling for local forest ecosystems. As a global phenomenon, however, it has a significant social impact that remains poorly understood. "We don't currently know ...