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Goldspotted Oak Borer

Agrilus coxalis is more commonly known as the goldspotted oak borer. This pest was first found in California in 2004 and has since caused over 80,000 oak deaths. Although it is unsure how the beetle entered the United States, it is thought that firewood could have been the cause of its introduction and spread.

The goldspotted oak borer is about a centimeter long and takes on a dark green color with a metallic sheen. An easy trait to identify this insect by is are the six golden spots found on its wing covers and abdomen. Like other metallic beetles, it tends to leave D-shaped exit holes on the trunk of the tree. Other damage can take the form of thinning crowns, branch and twig dieback, red and black feeding galleries, and bleeding cankers.

Goldspotted oak borer has six gold spots on the back of its bullet-shaped body.

If you suspect you have found a goldspotted oak borer or an infested oak tree, please contact DPI at invasives@clemson.edu or 864-646-2140.

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