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Open access Oct 2026

Combined Effects of Sampling Dates, Insecticide Treatment and Cropping System on Bruchids (Coleoptera: Chrysomelidae: Bruchinae) Oviposition and Egg Parasitism by Uscana lariophaga Steffan, 1954, (Hymenoptera:Trichogrammatidae) in Cowpea Vigna unguicula

Background: Cowpea production is affected by bruchid infestation, while the indigenous egg parasitoid Uscana lariophaga contributes to natural mortality of bruchid eggs. Aims: This study aimed to evaluate the combined effects of cowpea Vigna unguiculata (L.) Walp. phenology, insecticide application and cropping system...

K. Kam, J. Koussoubé, M. Yamkoulga et al. · 0 citations
Open access Sep 2026

Influence of Female Age on the Reproductive Performance of Spermophagus niger Motschulsky and the Insecticidal Activity of Cymbopogon nardus (L.) Rendle Essential Oil

Spermophagus niger L. is the main insect pest of stored Hibiscus sabdariffa seeds, causing significant damage through seed perforation. This study aimed to enhance our understanding of the biology and management of this pest by evaluating the influence of female age on reproductive performance, and assessing the i...

J. Koussoubé, A. Oura, Edouard Drabo et al. · 0 citations

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