The prevention and/or suppression of key pests and diseases should be supported by:
- Regional organizations should establish a concept to avoid overlap at the regional level (summer and winter crops, overwintering hosts).
- Reduce dumps in the field where disease or soil-borne problems exist (inoculum risk). Dry crop after harvest in field or shelter before storage. Destroy infected material.
- Nematodes: Good soil structure and healthy bulbs should be used.