espanolTribolium castaneum es una plaga que infesta los productos agri- colas almacenados, principalmente granos. Una alternativa de control son los productos naturales, destacandose los aceites esenciales. Se evaluo la actividad repelente del aceite esencial de Bursera graveolens Jacq. ex L. contra T. castaneum aplicando el metodo de area de preferencia. Los resultados muestran diferencias significativas (p EnglishTribolium castaneum (Herbst, 1797) is a plague that infest store products, mainly grains. One alternative to control it is the use of natural products, highlighting the essential oils. It was evaluated the repellent activity of the essential oil of Bursera graveolens Jacq. ex L. towards T. castaneum. Results shows significant differences (p Repellent activity decreased when the time of exposition increased. In conclusion, the essential oil of B. graveolens could be an effective repellent against plague insects, being also this report the first related to repellency in this plant.