Prior to joining UCCE, Dias was a postdoctoral researcher at the University of Wisconsin – Madison, where he worked with Mark Renz and John Grabber on projects focused on identification of management practices and environmental factors to ensure successful establishment of alfalfa interseeded into corn silage; sustainable management of waterhemp in established alfalfa for dairy systems; and weed control, clover selectivity and resulting yield of grass-clover mixed swards treated with florpyrauxifen-benzyl + 2,4-D in Wisconsin.
Dias earned a Ph.D. in agronomy with focus in weed science from the University of Florida and an M.S. in crop protection and B.S. in agronomy from São Paulo State University in Brazil. He is fluent in Portugese.
His Ph.D. research focused on developing and implementing integrated management practices to reduce giant smutgrass populations in bahiagrass pastures. His M.S. research focused on investigating the selectivity of several residual herbicides applied preplanting of prebudded seedlings of different sugarcane cultivars.
Based in Merced, Dias can be reached at (209) 385-7403 and jdias@ucanr.edu.