Potato exports guide

Information on the conditions and phytosanitary requirements for the export of Scottish potatoes, where known by country.


Seed potatoes (updated 16 July 2019)

Wart disease

Potato wart disease (Synchytrium endobioticum) must not have been found within 2 km of the field where the potatoes were grown in the last 12 months. 

Potato cyst nematodes (PCN)

Potato cyst nematodes (Globodera pallida and G. rostochiensis) must not have been found within 2 km of the field where the potatoes were grown in the last 12 months. A consignment test for PCN is required before export (PCN testing for export applies). 

Growing crop tolerances

Class tolerances apply, except if the tolerances below are stricter:

  • all virus diseases (except PVX): NIL

Tuber tolerance 

Minimum tolerances for seed export apply, except for:

  • all rots: NIL
  • Powdery scab (Spongospora subterranea): Dutch scab scale 1.0
  • Common scab (Streptomyces scabies):  Dutch scab scale 1.5
  • Silver scurf (Helminthosporium solani): no discoloured, shrivelled or dehydrated tubers due to silver scurf allowed
  • Black scurf (Rhizoctonia solani): no more than 0.5% of tubers may have up to 1/20th of surface area covered 

Other requirements

Import permit: required.

Varieties: only varieties resistant to Potato wart disease (Synchytrium endobioticum) are allowed.

Chemicals: the seed potatoes may have to be treated with a broad spectrum fungicide (see Import Permit).

Packaging: should be free from plant debriss 

Certificates: a GMO declaration may have to be added to the Phytosanitary Certificate by the exporter (see Import Permit). 

Additional declarations to be inserted on the reverse of the phytosanitary certificate for seed potatoes

  1.  The crop from which the consignment is derived was not grown in the vicinity of unhealthy potato crops and did not originate from a place where Colorado beetle (Leptinotarsa decemlineata), Golden nematode (Globodera rostochiensis), Black wart (Synchytrium endobioticum) and Potato spindle tuber viroid were prevalent. These pests and diseases were not recorded within 2 kilometres of the place where the potato crop was grown during the past 12 months.
  2. Powdery scab (Spongospora subterranea) and common scab ( Streptomyces scabies) did not exceed Dutch scale 1.5.
  3. Silver scurf (Helminthosporium solani) was within the limits permitted in Scotland, i.e. the consignment did not show wrinkled or shrivelled tubers as a result of silver scurf.
  4. The tubers are free from viruses to the extent of the Pakistani tolerances for Basic seed, free from unapproved plant parts and practically free from soil.
  5. The potatoes in the consignment are not genetically modified.
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