Oak Galls
Oak Galls
List of files and visuals associated with this text.
A number of small flies or wasps cause the formation on oak leaves or twigs. Lay eggs on the leaves or twigs. The plant then forms a gall in which the immature insect develops.
The galls that form on leaves are of little consequence to a healthy tree. However, the twig galls are more serious. The gall formation on the twig disrupts twig function and the portion of the twig beyond the gall may die. A tree heavily infested with twig galls may die.
Visuals associated with this text.
| Visual title - Visual size | Visual title - Visual size |
|---|---|
| Oak gall - 48K | Oak apple gall - 36K |
| Oak gall - 35K | Hedgehog gall on oak - 43K |
| Oak gall - 42K |
