Whitney Cranshaw, Colorado State University, Bugwood.org
Bronze birch borer
Agrilus anxius

Bronze birch borer (Agrilus anxius) is an insect pest of ornamental birch trees. It is a native of North America and was first detected in Maryland in 1984.

This borer mostly attacks stressed, weakened, or diseased birch trees. Larval tunneling causes girdling and eventual death of branches.

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