News tagged with trees

Tree rings and arroyos

A new GSA Bulletin study uses tree rings to document arroyo evolution along the lower Rio Puerco and Chaco Wash in northern New Mexico, USA. By determining burial dates in tree rings from salt cedar and wi ...

dateSep 18, 2014 in Earth Sciences
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Urbanization is good for pests, bad for trees

My wife is from a neighborhood outside Baltimore called Lawyers Hill. This is where, in the 18th century, lawyers (and I assume doctors and other gentlemen) had country houses and could escape the summer ...

dateAug 25, 2014 in Environment
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Gum arabic under an electron microscope (w/ Video)

This alien glob in the video below is a piece of gum arabic from the hardened sap of the Acacia tree, most likely collected from a tree in Sudan. Rox Middleton explains how the electron microscope has changed the way we are ...

dateJul 01, 2014 in Nanophysics
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Walnut tree disease spreads to northeastern Colorado

Thousand cankers disease, a relatively new disease to Colorado that is lethal to infested black walnut trees, has now arrived in the northeast plains. The disease was confirmed in Fort Morgan through cooperative efforts of ...

dateAug 14, 2014 in Ecology
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Beating the beetles

"The whole country knows about Boston. When a challenge presents itself, the entire community here comes together. The eradication of the Asian longhorned beetle is a great example of that," said Gary Woodward, ...

dateMay 14, 2014 in Ecology
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