Outer root tissues decayed leaving central core when pulled out of ground. Most pea seeds available to the grower are pretreated. Erisiphe polygoni 1. White, powdery coating on leaves, stems and pods.
Leaves become dwarfed, yellow and misshapen.
Circular spots in field. Stunted, pale yellow-green wilting plants. Leaves curl downward. Stems thick and brittle. Xylem tissues yellow to orange and then darken.