SOYBEAN MOSAIC

Description: Soybean mosaic is seed-borne and spread by aphids in the field. Leaves of affected plants are generally misshapen and puckered, occasionally with green venations. Leaflets are asymmetric and curl down at the margin. Less severe symptoms include a mild mosaic.

Location: Throughout Ohio.

Time of infection: Seedlings or adult plants may show symptoms. Symptoms are most evident during the cooler growing periods and the symptoms are masked during hot weather (above 850 F).

Management:
· Resistant varieties

Virus symptoms vary on different soybean varieties and more than one virus can infect a plant. Laboratory analysis is necessary for determining which virus is responsible for the disease.

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Corn, Soybean, Wheat, and Alfalfa Field GuideBulletin 827