With the aim of finding biodegradable organic substances that are not harmful to humans and that do not pollute the environment, that are effective against the fly and alternatives to synthetic pesticides polluting the environment, a test of the insecticidal activity of Tephrosia vogelii, Tetradenia ruparia and Tithonia diversifolia was carried out in the presence of the synthetic pesticides (Thiodan) and the control. Indeed, the results obtained are as follows: During the two cropping seasons, at stages V3-V4 and r6, the variety V2 / Rwr2254 is the most susceptible to attack by the common bean fly; When treated with insecticide plants and the synthetic insecticide, thiodan, we found that there were fewer pupae on common bean plants treated with the insecticide plant Tephrosia vogelii and thiodan, followed by the lethal dose (Dl 90) of each insecticide plant. For the 2 cropping seasons, the plot yield in gram shows that the variety V1 / HM 21-7 gave the high yield; the plant Tephrosia vogelii yielded a high yield and compared to treatments, thiodan provided high yield and The extrapolated yield in kilograms per hectare still shows that the variety V1 / HM21-7 is the one that gave a high yield, the insecticide plant Tephrosia vogelii is the one that gave a high yield and the thiodan is the treatment that gave high efficiency. Thus, the use of these insecticidal plants is an alternative for managing the bean fly for improving common bean productivity.