Wherever a control measure is deemed necessary, a biological or biotechnical control method must be used if available and effective.
Cabbage root fly: soil treatments are not permitted.
Aphids: Application of selective insecticides is only permitted based on thresholds.
Lepidoptera: Application of selective products (e.g. Bt, IGR) where available and effective, instead of broad-spectrum products, is mandatory.
Mechanical weeding must be preferred / used where possible and effective.