Josue, M. T. and Alexis, O. (2022) “Effectiveness of Neem Oil and Jatropha Oil in Controlling Spodoptera frugiperda (J.E Smith) on Maize in the Republic of Chad”, European Scientific Journal, ESJ, 18(30), p. 223. doi: 10.19044/esj.2022.v18n30p223.