A fungus causing powdery mildew in blueberries has spread from the U.S. to continents like Europe and Asia, threatening crops and increasing fungicide dependence. NC State researchers found that blueberry powdery mildew has spread globally in two strains, costing the industry up to $530 million annually. A new tool now helps farmers identify and manage the disease. A new study from North Carolina State University has traced the global spread of a fungus that causes powdery mildew in blueberry plants—a disease that lowers crop yields and increases reliance on fungicides. These findings could help blueberry growers better predict, monitor, and...