Insecticidal effect of essential oils from mediterranean plants upon Acanthoscelides Obtectus Say (Coleoptera, Bruchidae), a pest of kidney bean (Phaseolus vulgaris L.)

Catherine Regnault-Roger (1) , A. Hamraoui , Michel Holeman (2) , E. Theron , Raoul Pinel (2)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
2 LCABIE - Laboratoire de Chimie Analytique Bio-Inorganique et Environnement

The bioactivity of 22 essential oils from aromatic and medicinal plants was tested upon Acanthoscelides obtectus Say (Coleoptera, Bruchidae), a pest of kidney bean (Phaseolus vulgaris L.). The insecticidal effect was evaluated by determination of 24- and 48-hr LC50 and LC50 (from 1.50 mg/ dm3 to more than 1000 mg/dm3). Isoprenoids and phenylpropanoids were identified by gas chromatography. The most efficient essential oils were extracted from plants belonging to Labiatae. Origanum marjorana and Thymus serpyllum essential oils were the most toxic.

Domaines: Biologie végétale

Catherine Regnault-Roger, A. Hamraoui, Michel Holeman, E. Theron, Raoul Pinel. Insecticidal effect of essential oils from mediterranean plants upon Acanthoscelides Obtectus Say (Coleoptera, Bruchidae), a pest of kidney bean (Phaseolus vulgaris L.). Journal of Chemical Ecology, 1993, 19 (6), pp.1233-1244. ⟨10.1007/BF00987383⟩. ⟨hal-01557896⟩