Leaf Gall

Abnormal puckered or bulging growths form on leaves, caused by fungi or midge insects that create deformities affecting appearance. Most galls are purely cosmetic and don't threaten overall plant health or survival. Severe infections may benefit from pruning affected shoots to improve aesthetic appearance and reduce pest or disease inoculum for the next season.

Galls are abnormal growths triggered by the pathogen and cannot be reversed once formed. Prune out galled tissue when practical, cutting well below the affected area. Avoid wounding plants during maintenance, as many gall-forming organisms enter through fresh injuries. For severe or recurring gall problems, consider whether the species is well-suited to the site conditions, as stressed plants tend to be more susceptible.