OAK - apple galls, caused by the Oak Apple Gall wasp
OAK - apple galls, caused by the Oak Apple Gall wasp (Biorhiza pallida). The oak apple gall wasp (Biorhiza pallida) lays her eggs in a leaf bud. Chemicals are then produced by the larvae, which makes the tree tissues grow in a very specific way. An apple-like growth is formed, within which there is approximately 30 chambers, each with a larva inside. The adults emerge in June / July
Picture No
10754103
Media ID
42852678
Size
4961px x 3508px
(1.2MB)
Credit
©Bob Gibbons / www.ardea.com
Category
NA
Ardea Picture Library
Picture No
10754103
Contributor Ref
ROG-11540
