Schroeteria bremeri Petrak, 1953

on Veronica

gall

The plants look quite normal, but the contents of the fruits has been modified into a greyish brown powdery mass of spores.

host plants

Plantaginaceae, monophagous

Veronica triphyllos.

distribution within Europe

PESI (2021).

references

Vánky (1981b).