9_3_strict_arable_potatoes

Wherever a control measure is deemed necessary, a biological or biotechnical control method must be used if available and effective.

Pests

Control of Colorado Beetle/aphids (where established) must only be carried out according to threshold levels or national law.

Insecticides classified “yellow” or “green” in IOBC Pesticide Side Effect Database must be used in accordance with threshold levels

No nematicides are allowed.

Diseases

Copper must not be use.

For Rhizoctonia, seed treatment is only permitted if threshold levels for tubers with sclerotia of R. solani are exceeded.

Weeds

No chemical herbicide can be applied before planting.

Preference for mechanical haulm killing (canopy removal).