Disease and pest management is at the heart of the solutions to be provided to Burundian agriculture to address food and nutritional insecurity in Burundi. This study allowed us to analyze the effect of biopesticides derived from extracts of the leaves of neem, Tephrosia vogelli and tobacco in the fight against the cabbage aphid Brevicoryne brassicae in Burundi.The products used were dudu fenos for the positive control or T7 and the extracts of neem, Tephrosia vogelli and tobacco for treatments T1 (containing neem only), T2 (containing Tephrosia vogelli only), T3 (containing tobacco only), T4 (containing neem, and Tephrosia vogelli), T5 (containing neem and tobacco), T6 (containing neem, Tephrosia vogelli and tobacco). For the ISABU site, TO-5, T1=1.44, T2=1.22. T3=0, T4-0.56, T5-0 and T6-0 and T7=0 for the average number of Style leaves of infested plants after the third spraying. The results of the analysis of biopesticide residues gave a value higher than the control value 144.167 for treatments T3 (144.167 lower than 199.787) and T6 (144.167 lower than 168.272).