ISSN: 0972-1045

Larvicidal effect of Ruta graveolens L. plant extract against Myzus persicae (Sulzer) (Homoptera: Aphididae) in Capsicum annum

Journal of Applied Horticulture, 2024, 26(4): 446-449.

Larvicidal effect of Ruta graveolens L. plant extract against Myzus persicae (Sulzer) (Homoptera: Aphididae) in Capsicum annum

Samah Rahmani¹* and Nacer Tarai^1,2

¹Departement of Agricultural Science, Laboratory of Ecosystems Diversity and Agricultural Production System Dynamics in Arid Zones (DEDSPAZA), Mohamed Khider University, BP 145 RP, 07000 Biskra, Algeria. ²DSCAIARA laboratory, Mohamed Khider University, BP 145 RP, 07000 Biskra, Algeria. Corresponding e-mail: samah.rahmani@univ-biskra.dz

DOI: https://doi.org/10.37855/jah.2024.v26i04.83

Key words: Capsicum annum, Ruta graveolens L., Myzus persicae (Sulzer), aqueous extract, biopesticide.

Abstract: Capsicum annum, one of the most important subsistence greenhouse vegetable crops in the Biskra region, has been destroyed by the more damaging pest M. persicae. Biological control using aqueous extracts of medicinal plants could be a viable alternative for decreasing the use of chemical products. The current study aims to assess the larvicidal activity of the aerial component of Ruta graveolens L. on green peach aphid larvae M. persicae via contact. Three concentrations with four replications were applied to M. persicae larvae, and corrected mortality was measured after 24 hours, 48 hours, and 72 hours. The results showed that an aqueous extract of R. graveolens was effective on M. persicae sulzer at 5, 10 and 20% concentrations with a 97% mortality rate after 72 hours with the 20% dose. The value of the current work is that an aqueous extract of R. graveolens was poisonous to the green peach aphid; these findings can help to produce biopesticide.