What symptom or sign is not associated with the emerald ash borer?

The symptom or sign that is not associated with the emerald ash borer is that adults are a metallic green, slender, and longer than the width of a penny. While the adult emerald ash borer is indeed metallic green and slender, the description regarding size is not accurate in the context of their identification features. Adults are generally around 1/2 inch long, which is not longer than the width of a penny.

The other choices accurately describe characteristics associated with emerald ash borers. For instance, the distinct D-shaped exit holes created by the adult borers emerge from the tree bark, and the larval galleries are known for their signature serpentine S-shape pattern, which is formed as they feed beneath the bark. Additionally, the larvae's creamy-white color and their bell-shaped segments are typical indicators of emerald ash borer infestation. Understanding these specific features is essential for identifying and managing emerald ash borer-related damage in forested areas.