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. 2004 Dec;75(7-8):745-9.
doi: 10.1016/j.fitote.2004.08.005.

Insecticidal activity of certain medicinal plants

Roman Pavela  1
Affiliations

Insecticidal activity of certain medicinal plants

Roman Pavela. Fitoterapia. 2004 Dec.

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)].

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