Virus Fighters, Disease Detectors, Go North!
Seeking Answers for Grape Diseases Gardeners may prize ornamental grapes that turn crimson in late summer, but that’s not something wine grape growers want to see in their vineyards. Crimson leaves are a characteristic symptom of a complex virus-associated disease called grapevine leafroll. The untreatable disease delays ripening, causes a significant drop off in yield […]