YELLOW MOSAIC

Description: Yellow mosaic is a virus disease transmitted by aphids from legume weeds (clover). Symptoms are recognized as a conspicuous yellow mottling of the leaves during periods of cool temperatures. Yellow areas are scattered over the leaf surface and rusty, tan spots may appear in them.

Location: The most common and widespread virus disease of soybean in Ohio.

Time of infection: Symptoms generally show up late in the season and damage is minimal.

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