Marcellin Yamkoulga

Assessment of the Real Rate of Senegalia macrostachya (Reichenb. ex DC.) Kyal. & Boatwr. Seeds Initial Infestation by Insect Pests in Spontaneous Vegetation, Using a Combination of Perforation and Dissection of These Seeds

Marcellin Yamkoulga, Idrissa Compaoré, Aboubakar Sanon, Mathieu Ouali, Antoine Waongo, Zakaria Ilboudo & Antoine Sanon · Journal of Experimental Agriculture International · 2026

Background: Senegalia macrostachya is an edible wild legume in Burkina Faso whose seeds are affected by bruchid infestation before harvest. Aims: To assess the true initial infestation rate of Senegalia macrostachya seeds by bruchids in spontaneous vegetation by combining insect...

Open access Research Article 10.9734/jeai/2026/v48i94483

Effects of Releases of the Egg Parastoid Uscana lariophaga Steffan (Hymenoptera: Trichogrammatidae) on Cowpea [Vigna unguiculata (L.) Walp.] Pods Artificially Infested with the Bean Weevil Callosobruchus maculatus Fabricius (Coleoptera: Chrysomelidae: Br

Koï Wenceslas Kam, Marcellin Yamkoulga, Emmanuel Kabore, Antoine Waongo, Zakaria Ilboudo & Antoine Sanon · Annual Research & Review in Biology · 2026

Background : Cowpea production and storage are constrained by Callosobruchus maculatus, whose field infestation can continue after harvest. Aims : This study aimed to evaluate the efficacy of releasing the egg parasitoid Uscana lariophaga Steffan, 1954 against Callosobruchus macu...

Open access Research Article 10.9734/arrb/2026/v41i102475

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

Koï Wenceslas Kam, Jean Christophe Koussoubé, Marcellin Yamkoulga, Antoine Waongo, Zakaria Ilboudo & Antoine Sanon · Annual Research & Review in Biology · 2026

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, inse...

Open access Research Article 10.9734/arrb/2026/v41i112483