The pods shrivel, die, and turn black. Seeds may be invaded as the fungus grows through the pod. They usually remain attached to the plant. Plant in well drained soil. Rows should run the direction of the prevailing wind to increase air circulation and promote leaf drying.
Crop rotations can be helpful.
Plow under debris after harvest. Resistance is available for this disease. See current recommendations for chemical control measures. By Pamela S. Mercure, IPM Program Assistant, University of Connecticut References Hall, R., and J. R. Steadman. 28-29 in Compendium of Bean Diseases.