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Cynips quercusfolii
Cynipid gall wasp Cynips quercusfolii
Description
The gall is about 15-25 mm in zize, small ball-like, found on the bottom side of the leaf. The inside is soft and spongy. The gall surface is smooth, if it occurs on Quercus robur, or rough, if it occurs on Quercus petraea. The colour of the gall varies from yellowish green to red. The fully developed small wasp overwinters inside the gall and leaves it in spring.
Symptom
The gall is about 15-25 mm in zize, small ball-like, found on the bottom side of the leaf.
Tree Species: Oak
Part of a plant- attacked: Leaf / Needle
Pest significance: Less harmful
Pest Category: Insects
Invasive Species: No
Present in EU: Yes
Add comment: Cynips quercusfolii
Location map: Cynips quercusfolii
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Last observations
There are a total of 24 observations of the species in the system
Cynips quercusfolii Cynipid gall wasp Cynips quercusfolii
Tomáš Jusko
Number of votes: 0
Published: 28.12.2025
Cynips quercusfolii Cynipid gall wasp Cynips quercusfolii
Oz
Number of votes: 0
Published: 27.10.2025
Cynips quercusfolii Cynipid gall wasp Cynips quercusfolii
Sonica
Number of votes: 0
Published: 18.10.2025
Cynips quercusfolii Cynipid gall wasp Cynips quercusfolii
milan
Number of votes: 0
Published: 10.9.2025
Cynips quercusfolii Cynipid gall wasp Cynips quercusfolii
milan
Number of votes: 0
Published: 14.8.2025
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