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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2021, Volume : 9, Issue : 4
First page : (118) Last page : (123)
Article doi: : http://dx.doi.org/10.18782/2582-2845.8749

Evaluation of the Bio-Insecticidal Effect of Ricinus communis (Malpighiales: Euphorbiaceae) on the Larvae of Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae)

Cheikh Atab Diédhiou^1*, Pape Mbacké Sembene², El hadji Omar Dieng³ and Ahamada Karihila Boinahadji^4
1Université Cheikh Anta DIOP de Dakar, Département de Biologie Animale, BP 5005, Dakar, Sénégal, Direction de la Protection des Végétaux-Sénégal ; Km 15, Route de Rufisque. BP : 20054 Thiaroye, Dakar
²Université Cheikh Anta DIOP de Dakar, Département de Biologie Animale, BP 5005, Dakar, Sénégal
³Direction de la Protection des Végétaux-Sénégal ; Km 15, Route de Rufisque. BP : 20054 Thiaroye, Dakar
⁴Université Cheikh Anta Diop de Dakar, Département de Biologie Animale BP 5005, Dakar, Sénégal
*Corresponding Author E-mail: cheikhdiedhiou165@gmail.com
Received: 9.06.2021 | Revised: 12.07.2021 | Accepted: 20.07.2021 

 ABSTRACT

Since chemical insecticides favor the emergence of resistance and have disastrous consequences for the environment, we became interested in an alternative control method against Spodoptera frugiperda, more respectful for the environment. We therefore evaluated the effectiveness of the bio-insecticidal effects of plants extracts and oil of castor against the fall armyworm in the laboratory. The laboratory bioassays consisted of evaluating the toxicity of the castor plants extracts and oil by contact and ingestion on fourth instar larvae of Spodoptera frugiperda using a leaf dipping method. It emerges from this study that the mortality of the larvae treated with the bio-insecticide and the control solution varies significantly and that the mortality rate was 100% for dose 1; 85% for dose 2 and 70% for dose 3. The mortality rate for the control solution is 10%. These results testify to the good larvicidal activity of the organic insecticide based on oil, leaves and unripe seeds of castor bean on the fall armyworm.

Keywords: Spodoptera frugiperda; Bio insecticide; Ricinus communis; Larvae.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Diédhiou, C. A., Sembene, P. M., Dieng, E. H. O., & Boinahadji, A. K. (2021). Evaluation of the bio-insecticidal effect of Ricinus communis (Malpighiales: Euphorbiaceae) on the larvae of Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae), Ind. J. Pure App. Biosci. 9(4), 118-123. doi: http://dx.doi.org/10.18782/2582-2845.8749