title: Insecticide resistance in Heliothis: tolerance in larvae of H. virescens as compared with H. zea to organophosphate insecticides.
mesh_terms: D000818:Animals; D001681:Biological Assay; D007313:Insecta; D007305:Insecticide Resistance; D007306:Insecticides; D007814:Larva; D007928:Lethal Dose 50; D063065:Organophosphonates; D009943:Organophosphorus Compounds; D009946:Organothiophosphorus Compounds; D010278:Parathion
chemical_list: D007306:Insecticides; D063065:Organophosphonates; D009943:Organophosphorus Compounds; D009946:Organothiophosphorus Compounds; D010278:Parathion