A spherical red or purple gall which forms on the leaves or male catkins of oak trees in response to the developing larva of a gall wasp. It results from eggs laid in the spring and alternates within the annual cycle with the spangle gall.
- The wasp is Neuroterus quercusbaccarum, family Cynipidae
More example sentences
- The black currant gall mites are the small white worm-like creatures between the bud tissues.
- Look up oak apples, marble galls, currant galls etc. in an insect book - there are over 20 types on oak alone.
- Common insects include the San Jose scale, currant borer, and black currant gall mite.
Definition of currant gall in:
- The US English dictionary