Irregular hollow areas in the center of potatoes. Avoid over-fertilizing and proper spacing between plant may prevent problem. Silvery blotches form on seed potatoes. Use only certified seed and store in a cool, well-ventilated place. Rapid and wet rot occurs in Sweet Potatoes emitting a foul odour.
Flesh becomes soft and pulpy.
Happens in storage as well as in the field. Enters the plants through wounds. Avoid wounding plants when cultivating and storing. 10 cm deep and space them 30 to 45 cm apart. When using pesticides always read the entire label on the container and follow the directions.