Dr. Olivier Le Gall is an agronomical engineer, specialized in research in plant pathology. He is a researcher at INRA (French National Institute of Agricultural Research) since 1986. Until 2006, he was a researcher in plant virology and studied the molecular bases of the interaction between a virus and its host plant, so as to fine-tune plant resistance. From 2006 to 2012, Le Gall headed the INRA division” Plant Health and the Environment” and his efforts were focused on developing ecology in crop protection. In 2010, he initiated an INRA meta-program on sustainable management of crop health, aiming to develop and connect all relevant disciplines in the field of crop protection sciences, including human sciences.