College leadership

Professors Johan Leveau and Jorge Mazza Rodrigues will take over as chairs of the Department of Plant Pathology and Department of Land, Air and Water Resources, respectively, Dean Ashley M. Stokes from the College of Agricultural and Environmental Sciences announced. 

The appointments took effect July 1, 2026.

Leveau, who is a microbial ecologist and professor, has served as interim chair since January, replacing Dave Rizzo. 

Three professors in the College of Agricultural and Environmental Sciences at UC Davis have taken on new roles on the college leadership team, Dean Ashley M. Stokes announced.

Professor Jason Bond is the new executive associate dean, or EAD, after serving on an interim basis in that position for several months. Professor Anne Todgham is the new associate dean for agricultural sciences and Professor Amanda Guyer is associate dean for human and social sciences.