B.S. in Agronony (1984) and M.S. in Entomology (1987) from University of São Paulo, Brazil and Ph.D. in Entomology (1994) from Cornell University, USA. He is a Full Professor of the Department of Entomology and Acarology, University of São Paulo/Luiz de Queiroz College of Agriculture, Brazil. His research focuses on the risk assessment and management of pest resistance to insecticides and Bt crops in Brazil.