Powdery mildew continues to be one of the most prominent diseases affecting wine and table grape production. More issues related to fungicide resistance are emerging while seasons like 2019 produce perfect conditions for powdery mildew. Developments like these have put a bigger spotlight and emphasis on management strategies, like FRAC group rotation and application timing. Join Akif Eskalen, plant pathologist and University of California Cooperative Extension Specialist, as he discusses the challenges powdery mildew poses as well as fungicide delivery methods and tips for more effective disease management.