Wherever a control measure is deemed necessary, a biological or biotechnical control method must be used if available and effective.
Insecticides are permitted only in case of severe infestations by aphids and weevils or other arthropod pests.
Avoid all insecticide applications during flowering.
Fungicides are only permitted for seed dressing or/and heavy Sclerotina or Botrytis infections.
A combination of mechanical and chemical weed control must be used.