emerald ash borer package

emerald ash borer package

collage

Four views of the emerald ash borer, the invasive insect that is wiping out green and white ash trees: adult beetle (top, left) pupa found under the bark (lower left) beetle peering out of a characteristic D-shaped hole that they bore, and a section of a dead ash tree, showing how the insects girdle and kill a tree by boring under the bark. 

IMAGE: David Cappaert/Bugwood.org, Greg Hoover/Penn State, Missouri Department of Conservation, Wisconsin Department of Natural Resources
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