Splits may be removed when the bulb is dry. Insects and diseases Daffodils have few insect and disease pests. Healthy bulbs planted in good location will have few problems once established. Bulb rots are perhaps the most frequent cause of disappointment. Plants that have been attacked may not emerge or may have weak or blighted leaves.
Bulbs usually begin to rot at the base.
To control the problem, plant high-quality bulbs, well cured and free of cuts or bruises. Well-drained soil is essential to keep the problem from developing. Avoid over-fertilization, especially with nitrogen or manure. Diseased plants should be immediately destroyed so the problem does not spread. Daffodils are not difficult to force in the home.