My research is focused on developing effective, economical, and sustainable pest management strategies for powdery mildew (caused by Podosphaera macularis) and downy mildew (Pseudoperonospora humuli) of hop, and integration of disease and arthropod pest management practices on this crop. Powdery mildew and downy mildew are two of the oldest diseases of hop and were partly responsible for the shift in hop production from the Atlantic coast to the western U.S.Outbreaks of these diseases occur annually in most hop production regions in the western U.S., and are estimated to cost the U.S. hop industry greater than $10 million annually in additional production expense and crop loss.Research in my lab seeks to understand aspects of the epidemiology, ecology, and population biology of these pathogens and their diseases that will lead to novel approaches to disease management.