Activities of Organic Extracts of Cassia occidentalis Leaves on the Mortality and Fecundity of Callosobruchus maculatus (Main Insect Pest of  Vigna unguiculata Seed Stocks)

El Hadji Gorgui Diouf; Adama Faye; Alioune Diouf; Mamadou Latyr Ndour; Mamadou Ngom; Baboucar Sarr; Mamadou Kébé; Talibouya Ndior; Ndeye Bineta Camara; Alioune Ndiaye

doi:10.9734/ajocs/2024/v14i1286

Research Article Open access CC BY 4.0

Activities of Organic Extracts of Cassia occidentalis Leaves on the Mortality and Fecundity of Callosobruchus maculatus (Main Insect Pest of Vigna unguiculata Seed Stocks)

El Hadji Gorgui Diouf, Adama Faye, Alioune Diouf, Mamadou Latyr Ndour, Mamadou Ngom, Baboucar Sarr, Mamadou Kébé, Talibouya Ndior, Ndeye Bineta Camara, Alioune Ndiaye

Asian Journal of Chemical Sciences · pp. 58–64 · Published 17 Feb 2024

10.9734/ajocs/2024/v14i1286

Abstract

Callosobruchus maculatus Fab (Coleoptera: Chrysomelidae) is the most formidable pest of cowpea (Vigna unguiculata) in the field. The damage continues even in stocks intended for food. The present work was carried out to evaluate the insecticidal effect of organic leaf extracts of Cassia occidentalis on mortality and emergence of F1 progeny in storage. The extracts were tested in contact in 90 mm diameter petri dishes with different doses. Phytochemical screening was carried out using coloring and precipitation tests. Mortality of C. maculatus was assessed between 1 and 17 days after infestation. The data were processed according to the General Linear Model procedure and using Minitab 19 software. The results of the statistical analysis showed that the methanolic extract gives a better mortality rate on Callosobruchus maculatus. These results are corroborated by phytochemical tests with the identification of molecules (alkaloids, flavonoids, tannins, polyphenols, etc.) likely to be responsible for this insecticidal activity.

Organic extracts Cassia occidentalis Callosobruchus maculatus cowpea

References (7)

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El Hadji Gorgui Diouf, Adama Faye, Alioune Diouf, Mamadou Latyr Ndour, Mamadou Ngom, Baboucar Sarr, Mamadou Kébé, Talibouya Ndior, Ndeye Bineta Camara, Alioune Ndiaye (2024). Activities of Organic Extracts of Cassia occidentalis Leaves on the Mortality and Fecundity of Callosobruchus maculatus (Main Insect Pest of Vigna unguiculata Seed Stocks). Asian Journal of Chemical Sciences , 58–64. https://doi.org/10.9734/ajocs/2024/v14i1286

Affiliations

El Hadji Gorgui Diouf — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Adama Faye — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Alioune Diouf — Department of Chemistry, Organic Chemistry and Bioorganic Laboratory, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Mamadou Latyr Ndour — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Mamadou Ngom — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Baboucar Sarr — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Mamadou Kébé — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Talibouya Ndior — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Ndeye Bineta Camara — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.
Alioune Ndiaye — Department of Chemistry, Laboratory of Natural Products, Faculty of Science and Technology, Cheikh Anta Diop University of Dakar, Senegal.

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