. "1986"^^ . . . "H\u00E9rard, F. 1986. Annotated list of the entomophagous complex associated with pear psylla, Psylla pyri (L.) (Hom. : Psyllidae) in France. Agronomie, EDP Sciences, 6 (1): 1-34." . "1986"^^ . "H\u00E9rard (1986)" . "H\u00E9rard (1986)" .