MAIZE CHLOROTIC DWARF

Description: The characteristic symptom of maize chlorotic dwarf is the presence of very fine chlorotic stripes adjacent to the secondary veins on leaves in the whorl stages of growth. Older plants become yellowed and reddened with severe stunting.

Location: Maize chlorotic dwarf occur in river bottom fields where johnsongrass is a problem in southern Ohio.

Time of attack: The virus overwinter in Johnson- grass. Leafhoppers feeding on johnson grass transmit the maize dwarf virus to corn plants. Symptoms may develop on young plants, but diseased plants are easier to diagnose in the mid to late whorl stages of development than later in the season.

Management:
· Resistant hybrids
· Destroy johnsongrass


Table of Contents | Top

Corn, Soybean, Wheat, and Alfalfa Field GuideBulletin 827