Tree-eating beetle gains ground in US West, raising concerns

Matt Johnson treks along an Arizona riverbank and picks out a patch of yellow-tinged tamarisks. He sweeps a cloth net across the trees, hoping to scoop up beetles that munch on their evergreen-like leaves.
Read more: https://phys.org/news/2019-07-tree-eating-beetle-gains-ground-west.html?source=Snapzu