Browsing: Galls

As a child, I was intrigued when I found perfectly round balls under the trees in the woods that I wandered through. Sometimes they were smooth and red-speckled. Other times they were brown and wrinkled. They looked like what I imagined a brain might appear to be without a skull, so brain balls they became. I had no clue how they came to be. But these galls are only part of a larger story about the insects that cause them to form on oaks.

Galls that form on plants often stick out and draw our attention. For Red Bay, the bright green galls stand out against the dark green leaves and are part of a natural relationship between a tiny insect and its host plant. Rarely seen, the galls are the only obvious evidence that these insects exist. Here is their story.