Maconellicoccus hirsutus causes serious damage to fruit production, plant ornamentals, and vegetables. This damage is caused by toxic saliva released by the insect that causes malformation of shoots and leaves, and wrinkling of apical growth. It is controlled by products synthetics that have effects harmful to animals, the environment, and beings humans, so The immense search for extracts of vegetables to control pests. This job demonstrates This work demonstrates the effectiveness of Jatropha plant extract against M. hirsutus. The concentration lethal rate of 50% (LC 50) was estimated at 14.11%. It was observed that mortality increased as the extract concentration increased. The form of application used, the direct one, can affect the individual one since it feeds on the leaf disc used in the experiment, as also, the fact that the insect possesses one carapace powdery that facilitates absorption of toxins via the dermis, causes an impact negative in the insect.