1. Bouyjou, B. &Lagarde, M. P. — 1988. Les psylles du poirier. —Fruits et légumes, 54, 13–14.
2. Giustina W. della, Deriu, P. &Foessel, P. — 1987. Role of specific natural enemies in the control of maize aphid population in the Paris area. —Bull. OILB/SROP, 10, 12–22.
3. Herard, F. — 1986. Annoted list of the entomophagous complex associated with pear psyllaPsylla pyri (L.) [Hom., Psyllidae] in France. —Agronomie 6, 1–34.
4. Fauvel, G., Naibo, B., Goff, C. &Tessier, P. — 1987. Les acariens tétranyques. Maïs. —Phytoma, 388, 23–27.