Galls on Elm

Galls on Elm

Observation - Galls on Elm - UK and Ireland. Description: Galls are large and seem to be misshapen leaves. Hollow and light. Seem to have exit holes. Now most

Galls are large and seem to be misshapen leaves. Hollow and light. Seem to have exit holes. Now mostly brown, but were originally green, a paler green than the surrounding leaves.