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Aphelonyx cerricola

Gall wasp Aphelonyx cerricola

Description

Only an asexual generation is known. An unilocular bud gall developing on shoots and young branches, singly or often in groups, commonly encircling the stem. They are 10-30 mm long, first green, later turning brown and wrinkly. They often twine the twig around. The species has been more and more common recently. It is spread from South to North in connection with climate changes and it has been already noticed also in northern territories.  

Symptom

Gall wasp are 10-30 mm long, first green, later turning brown and wrinkly. They often twine the twig around.

Tree Species: Oak

Part of a plant- attacked: Branch

Pest significance: Less harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes

Last observations

There are a total of 1 observations of the species in the system

Aphelonyx cerricolaGall wasp Aphelonyx cerricola
Marián Slamka
Number of votes: 0
Published: 1.4.2023

Aphelonyx cerricolaGall wasp Aphelonyx cerricola
majo
Number of votes: 0
Published: 1.4.2023