The rose bedeguar gall, Robin's pincushion gall, or moss galldevelops as a chemically induced distortion of an unopened leaf axillary or terminal buds, mostly on field rose (Rosa arvensis) or dog rose (Rosa canina) shrubs, caused by the parthenogenetic hymenopteran gall wasp (Diplolepis rosae (Linnaeus, 1758)), previous synonyms are D. bedeguaris, Rhodites rosae or Cynips rosae.Diplolepis females lay up to 60 eggs within each leaf bud using their ovipositors.