none Nutrition; Diet; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Ecology; Land and freshwater zones; Palaearctic region Coccinellidae; Prey; Aphis fabae (Hemiptera); Weeds effect on predator efficiency, broad bean crops; Iraq; Hemipteran prey on broad bean, effect of weeds on predator efficiency Ephedrus persicae; Trioxys angelicae (Braconidae ); Hemipteran hosts; Aphis fabae; Weeds effect on parasite efficiency; Iraq, broad bean crops, effect of weeds on parasite efficiency Aphis fabae (Aphidoidea); Hymenopteran parasites; Ephedrus persicae & Trioxys angelicae; Weeds effect on parasite efficiency; Plant hosts; Vicia faba (broad bean); Predators; Coccinellidae (Coleoptera); Weeds effect on predator efficiency; Iraq; Weeds effect on natural enemies, broad bean crops