Tuber rot (Botryodiplodia theobromae)

Symptoms

• Disease can affect crops both in the field and during storage.
• During storage, tubers may develop wet rot, soft rot, or brown dry rot.
• Wet rot causes the tuber tissues to break down into a watery mass.
• Soft rot leads to softened tissues that turn pink in color.
• Tubers affected by dry rot become brown, dry, and turn into powdery brown residue.

Management

• Use disease free planting materials.
• Cut tubers should be dried properly.
• Planting materials should be dipped in wood ash before drying.

Chemical Control