Insecticidal activity of certain medicinal plants.
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)].
Pavela
Roman
R
Research Institute of Crop Production, Drnovska 507, 161 06 Praha 6, Ruzyne, Czech Republic. pavela@vurv.cz
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*
D007306:Insecticides; D010936:Plant Extracts