none Animals and man; Control; Biological control; Nutrition; Diet; Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Abiotic factors; Chemical factors Heliothis zea; Plathypena scabra; Pseudoplusia includens (Noctuidae ); Control by; Cotesia marginiventris (Hymenoptera), possible control in food plants using parasite; Food plants; Glycine max (soybean), possible control using hymenopteran parasite; Hymenopteran parasites; Cotesia marginiventris; Larva, possible use of parasite for control in food plants; Organic chemicals; Nematicide insecticides used on food plants; Effect on larva parasitism by Hymenoptera, control implications Cotesia marginiventris (Braconidae); Control of; Plathypena & Pseudoplusia (Lepidoptera); Lepidopteran hosts; Heliothis; Plathypena & Pseudoplusia; Possible control of host larva in food plants; Organic chemicals; Nematicide insecticides used on host food plants; Effect on parasitism of lepidopteran larva, control implications