A new study published in the Journal of the Saudi Society of Agricultural Sciences highlights the promising potential of plant-based and microbial biopesticides in controlling the fall armyworm (Spodoptera frugiperda)—a major pest threatening maize production in the tropics.
The research, conducted by Stéphane Martial Kamtchoum and colleagues in two agro-ecological zones of Cameroon, evaluated the effectiveness of several bio-based treatments including neem, Lantana camara, tobacco extracts, and the microbial biopesticide Rapax (Bacillus thuringiensis formulation). Field trials were carried out in Ntui and Foumbot during both rainy and dry seasons (2022–2023) under a completely randomized block design.
Results revealed that neem and Lantana camara extracts significantly reduced pest damage and larval survival compared to untreated controls. Rapax also performed effectively, achieving results comparable to chemical pesticide controls. These findings underscore the potential of natural biopesticides as sustainable alternatives for managing Spodoptera frugiperda infestations in maize-growing regions.
The authors conclude that integrating these plant-based and microbial solutions into pest management systems could help minimize dependence on chemical pesticides while promoting environmental safety and sustainable agriculture.
Reference
Kamtchoum, S. M., Temegne, N. C., Djomo, S. H., & Youmbi, E. (2025). Response of bio-pesticides in the control of Spodoptera frugiperda (J.E.Smith) on maize in two agro-ecological zones of Cameroon. Journal of the Saudi Society of Agricultural Sciences, 24(6), 43. https://doi.org/10.1007/s44447-025-00017-8
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