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Red ringspot
 Red ringspot virus
Annemiek Schilder, MSU Plant Pathology
Bill Cline, NCSU Plant Pathology
Red ringspot primarily occurs in the eastern United States.

Symptoms
Red ringspots or blotches that are roughly circular and 4 to 6 mm in diameter appear on green stems. Reddish-brown, circular spots 3-5 mm in diameter occur on the upper surfaces of older leaves in mid- to late summer. Symptoms may resemble those of powdery mildew. Circular, light-colored blotches may develop on infected fruit.

Disease cycle
Evidence suggests that mealybug is the vector of red ringspot virus. Infections become systemic and plants are infected for life.

Management
Plant virus-tested, clean stock; remove diseased plants from the field.
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Last Updated - 6/22/07