Coronavirus (COVID-19) Update

Enjoy a fully remote summer of professional education at the Silicon Valley Campus and the re-emergence of in-person courses in September. Visit our COVID update page.

Instructor

Ronald Tjeerdema LinkedIn

RONALD TJEERDEMA, Ph.D., D.A.B.T., is an Associate Dean in UC Davis’ College of Agricultural and Environmental Sciences and a professor in the Department of Environmental Toxicology. He has taught for UCSC Extension since 1990.