1. Studies on Pteromalus puparum L. (Hymenoptera: Pteromalidae), a pupal parasite of the cabbage worm Pieris rapae L. (Lepidoptera: Pieridae) in Egypt;Abbas;Mitt. Zool. Museum, Berlin,1985
2. Pieris rapae (L.), its parasites and predators in Canada and United States;Blunck;J. Econ. Ent.,1957
3. Chadrie, M. , 1956: Some aspects of external morphology, biology and control of the cabbage butterfly Pieris rapae (L.). M.Sc. Fac. Agric., Cairo Univ.
4. El-Sufty, E. ; Metwally, S. M. I. ; Saleh, R. ; Abo-Aiana, R. , 1983: Population dynamics of the cabbage white butterfly Pieris rapae (L.) at Kafr El-Sheikh, Egypt. Proc. 5th Arab. Pesticide Conf. Tanta Univ. Vol. (III), 128-135.
5. Control of the cabbage looper and imported cabbageworm by virus and bacteria;Jaques;J. Econ. Ent.,1972