Powdery Mildew of Cherry New Fungicide Tools and Resistance Management Guidelines

Cherry growers in the Pacific Northwest have multiple fungicides at their disposal for managing powdery mildew. Products in the powdery mildew “toolbox” include members of the DMI, QoI, SDHI, quinolone synthetic compounds and multiple “contact” fungicides from other classes (e.g. sulfur and narrow range petroleum oils). In the link below, Gary Grove, WSU Researcher, shares new tools and management guidelines to prevent Powdery Mildew resistance to fungicides.