This viral disease was originally described in New Jersey. The most common symptom is an elongated reddish streak along the new stems.
Diseased leaves are narrow, wavy and somewhat sickle-shaped.
Flowers may be red-streaked, and berries turn purple prematurely. Within a few years, berry production drops dramatically. Management Other than buying disease-free plants, destroying wild plants near the planting, and removing diseased plants, controls do not exist. As with most virus diseases, the best controls are preventing disease introduction and detecting the disease when it is still localized in a small portion of the field. Other cultivars may possess field resistance to the disease.