ISSN 2756-3839
International Journal of Nematology and Entomology ISSN 2756-3839 Vol. 8 (3), pp. 001-005, March, 2022. © International Scholars Journals
Full Length Research Paper
Insecticidal activity of four medicinal plant extracts against Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)
Rachid JBILOU1, Abdeslam ENNABILI2, Fouad SAYAH 1*
1Centre des Etudes Environnementales Méditerranéennes (CEEM), Laboratoire de Biologie Appliquée & Sciences de l'Environnement, Université Abdelmalek Essaâdi. Faculté des Sciences et Techniques, BP 416, 9000 Tanger, Maroc.
2Institut National des Plantes Médicinales et Aromatiques, Université Sidi Mohamed Ben Abdellah. BP 8691, 30100 Fès, Maroc.
Accepted 11 February, 2022
Abstract
Methanol extracts from four medicinal plants, Peganum harmala (Zygophyllaceae), Ajuga iva (Labiateae), Aristolochia baetica (Aristolochiaceae) and Raphanus raphanistrum (Brassicaceae) were studied for their insecticidal effects on the stored grain pest Tribolium castaneum (Herbst). Response varied with plant species. Larvae growth was significantly inhibited when they were fed with extracts incorporated into the diet. Good insecticidal activity against T. castaneum larvae and adults was achieved with extract of P. harmala seeds, followed by extract of A. iva, Ari. baetica and R. raphanistrum aerial parts. The extracts of the four plants disrupted the developmental cycle of the insect. Extracts of P. harmala, A. iva and Ari. baetica inhibited F1 progeny production. These naturally occurring plant extracts could be useful for managing populations of T. castaneum.
Key words: Ajuga iva, Aristolochia baetica, Peganum harmala, Raphanus raphanistrum, Tribolium castaneum.