the effect of two insecticides, imidacloprid and pyriproxyfen, were investigated on some biological parameters of ladybird beetle menochilus sexmaculatus (f.) (coleoptera: coccinellidae) under laboratory condition. theladybird beetle were exposed to insecticides by ingestion of the common pistachio psylla, agonoscena pistaciae burckhardt and lauterer (hemiptera: psyllidae) (prey). for imidaclop...