gall wasp

US /ˈɡɔːl wɑːsp/
UK /ˈɡɔːl wɑːsp/
"gall wasp" picture
1.

Gallwespe

a small wasp that lays its eggs in plants, causing galls to form

:
The oak tree was covered in galls caused by gall wasps.
Die Eiche war mit Gallen bedeckt, die von Gallwespen verursacht wurden.
Scientists are studying the life cycle of the gall wasp.
Wissenschaftler untersuchen den Lebenszyklus der Gallwespe.