title: Insecticidal activity of certain medicinal plants.
abstract: The methanol extracts of eight species of medicinal plants were tested for insecticidal activity in third instar larvae of Egyptian cottonworm (Spodoptera littoralis). All extracts showed a certain degree of larval toxicity. The extracts of Ocimum basilicum, Origanum majorana and Salvia officinalis appeared to be highly toxic. The extracts significantly affected the growth indexes [relative growth rate (RGR), efficiency of conversion of ingested food (ECI), efficiency of conversion of digested food (ECD)].
authors.affiliation: Research Institute of Crop Production, Drnovska 507, 161 06 Praha 6, Ruzyne, Czech Republic. pavela@vurv.cz
authors.forename: Roman
authors.initials: R
authors.lastname: Pavela
mesh_terms: D000818:Animals; D020128:Inhibitory Concentration 50; D007306:Insecticides / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects; D018649:Ocimum basilicum; D031341:Origanum; D008517:Phytotherapy; D010936:Plant Extracts / Q000494:pharmacology*; D010946:Plants, Medicinal; D027543:Salvia officinalis; D018411:Spodoptera / Q000187:drug effects*
chemical_list: D007306:Insecticides; D010936:Plant Extracts