none Heliothis armigera (Hubner) is known to cause considerable losses to a variety of crops in India. Owing to its larval activity on a variety of host plants all the year round, it is difficult to control it effectively on the main crops, viz., gram, tomato and berseem. Survey of its host plants and natural enemies in a particular environment may help to control this pest, therefore, the present studies were undertaken with this aim in view. Nutrition; Diet; Feeding behaviour; Reproduction; Reproductive behaviour; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Ecology; Population dynamics; Habitat; Man made habitat; Land and freshwater zones; Oriental region Heliothis armigera (Noctuidae); Food plants; Food preferences; Crop plants; Breeding place; Oviposition; Crop plant preferences; Hymenopteran parasites; Braconidae; Euplectrus euplaxiae & Campoletis chloridae; Records; Population density; Crop fields; Cultivated land habitat; Crop field population density; India; Haryana; Hissar; Crop plant preferences & hymenopteran parasite records Braconidae; Campoletis chloridae (Ichneumonidae ); Euplectrus euplaxiae (Eulophidae ); Lepidopteran hosts; Heliothis armigera; Records; India; Haryana; Hissar; Lepidopteran host records