Author 'Gipsy34' (Id 245352 ) : June 10, 2019 : the dogroses were in full bloom in some areas of the galls was installed. The galls are growths (tumors) that are caused by agents cécidiogènes (insects and mites) that lay their eggs in the plant. The gall is the result of the reaction of the tissues of the plant to substances secreted by the larvae born from the eggs brought in by sting.