The paper presents data about the reduction of the efficiency of the primary parasitoids controlling two species of Pieridae (Pieris brassicae L. and P. rapae L.) in the cabbage cultures from the South-Eastern Romania, by several hyperparasitoid species. Comparing the results with those obtained 30 years ago in Moldova province, we found that the intervention of the hyperparasitoid species increased, especially in the case of Pieris rapae. The most efficient hyperparasitoid species in controlling the primary parasitoids was Baryscapus galactopus Ratz. Four host-parasitoid relationships are new to science. BR Parasites diseases and disorders. Parasites. Insect parasites. Hosts. Insect hosts. Ecology. Population dynamics. Habitat. Man made habitat. Land zones. Palaearctic region. Eurasia. Europe. Compsilura concinnata (Tachinidae): Parasite; Chalcidoidea (Terebrantia): Host; Baryscapus galactopus (Eulophidae): Parasite; Trichomalopsis submarginatus (Pteromalidae): Parasite; Trichogramma evanescens (Trichogrammatidae): Host, Parasite; Cotesia glomerata (Braconidae): Host, Parasite; Cotesia rubecula (Braconidae): Host, Parasite; Hyposoter ebeninus (Ichneumonidae): Host, Parasite; Pieris brassicae (Pieridae): Host. Baryscapus galactopus, Trichomalopsis submarginatus: Hymenopteran hosts, Chalcidoidea, Cultivated land habitat, hyperparasitism, effect on ability to control lepidopteran host, Romania, South east; Chalcidoidea: Hymenopteran parasites, Baryscapus galactopus, Trichomalopsis submarginatus, Cultivated land habitat, hyperparasitism, effect on ability to control lepidopteran host, Romania, South east; Compsilura concinnata: Lepidopteran hosts, Pieris brassicae, Cultivated land habitat, ability to regulate host abundance, Romania, South east; Cotesia glomerata, Cotesia rubecula, Hyposoter ebeninus, Trichogramma evanescens: Hymenopteran parasites, Lepidopteran hosts, Pieris brassicae, Cultivated land habitat, hyperparasitism, effect on ability to control lepidopteran host, abundance regulation, effect of hyperparasitism, Romania, South east; Pieris brassicae: Dipteran parasites, Compsilura concinnata, Hymenopteran parasites, Cotesia glomerata, Cotesia rubecula, Hyposoter ebeninus, Trichogramma evanescens, Population size, Abundance, abundance regulation, effect of hyperparasitism, Cultivated land habitat, ability to regulate host abundance, Romania, South east. ST Animalia, Arthropoda, Insecta, Diptera, Brachycera, Cyclorrhapha, Tachinidae; Animalia, Arthropoda, Insecta, Hymenoptera, Apocrita, Terebrantia, Chalcidoidea, Eulophidae; Animalia, Arthropoda, Insecta, Hymenoptera, Apocrita, Terebrantia, Chalcidoidea, Pteromalidae; Animalia, Arthropoda, Insecta, Hymenoptera, Apocrita, Terebrantia, Chalcidoidea, Trichogrammatidae; Animalia, Arthropoda, Insecta, Hymenoptera, Apocrita, Terebrantia, Ichneumonoidea, Braconidae; Animalia, Arthropoda, Insecta, Hymenoptera, Apocrita, Terebrantia, Ichneumonoidea, Ichneumonidae; Animalia, Arthropoda, Insecta, Lepidoptera, Glossata, Heteroneura, Papilionoidea, Pieridae. Arthropods; Hymenopterans; Insects; Invertebrates; Lepidopterans; True Flies. none2005