It sounds like hollow heart which is caused by rapid growth of the potato after a period of stress. The center dies out and pulls apart. It is not a disease but is caused by abrupt changes in growing conditions and sometimes by cold soil. Try to make sure your potatoes get an even supply of moisture and wait til the soil warms up to at least 58 degress before planting.
It sounds like hollow heart which is caused by rapid growth of the potato after a period of stress. The center dies out and pulls apart. It is not a disease but is caused by abrupt changes in growing conditions and sometimes by cold soil. Try to make sure your potatoes get an even supply of moisture and wait til the soil warms up to at least 58 degress before planting.