Researchers in British Columbia aren’t shrinking from the study of berry shrivel, a disease that’s been growing in significance in the Canadian province in recent years. Present throughout the world’s major wine regions, the disease has no known cause or discernible pattern of occurrence. It appears after veraison, arresting the development of grapes and leading to berries that look like deflated soccer balls. Diseased fruit is pale in color, has a sugar level of less than 16 degrees Brix with high acidity. Affected grapes taste sour. Whole clusters and single berries may be affected, but a vine with berry shrivel […]