Decoys could blunt spread of ash-killing beetles

As the emerald ash borer ravages North American ash trees, threatening the trees' very survival, a team of entomologists and engineers may have found a way to prevent the spread of the pests.

Native street trees can boost birds' survival

As native birds continue to lose their homes due to the spread of the Australia's cities, scientists are urging city planners and householders to help save them by planting more Australian trees.

Do urban 'heat islands' hint at trees of future?

City streets can be mean, but somewhere near Brooklyn, a tree grows far better than its country cousins, due to chronically elevated city heat levels, says a new study. The study, just published in the journal Tree Physiology, ...

Out of Africa and Into the American Midwest

Grasses bend in the wind, their golden tips tracing arcs across fields that stretch toward the horizon. Sunwashed by a fading evening light, these reedy ballet dancers are central figures in savanna, an ecosystem that covers ...

Oak trees have a lot of gall

Those valley oak trees (Quercus lobata) in California's Central Valley have a lot of gall.

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