This work is the result of an experimental research on "Effects of pyrethrum extracts on black bean aphids (Aphis fabae) in the agro-ecological conditions of Goma, DR Congo". At the end of the experimentation, it turned out that in the results found, the most illustrative data is the mortality rate of the population recorded after treatment of the crop. In this case, treatment three (T3) caused an average mortality of 97% of the 100% of the population that appeared, followed by treatment two (T2) which also killed 92% of the population that appeared and finally T1 which only caused a mortality of 27%. This shows that these products (extracts) responded favorably compared to the absolute control (TO).