Symptoms:

• Severely infected plants will appear yellow-green, stunted, and have spindly stems and small, deformed leaflets.
• In early stages of disease development, plants are often scattered throughout a field and symptoms include mild cupping, curling and mottling of leaves.
• Infected plants are often most easily noticed in re-growth after the first cut.
• Cross sections of the upper portion of infected roots have a yellowish-brown discoloration in the vascular system, and the discoloration may spread across the entire root as disease severity increases.