Publication - Advice and guidance

Potato exports guide

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

Potato exports guide
G to J


Seed potatoes (updated 26 February 2021)

Potato cyst nematodes (PCN)

A consignment test for Potato cyst nematode (Globodera rostochiensis and G. pallida) is required before export (PCN testing for export applies). SASA will charge for this test. 

Growing crop tolerances

Class tolerances apply except if the tolerances below are stricter: 

  • PMTV and TRV: NIL

 Tuber tolerances

Minimum tolerances for seed export apply except for:

  • soft rot/Blackleg (Pectobacterium): NIL
  • verticillium spp: NIL
  • spraing (PMTV and TRV): NIL
  • black heart: no more than 3%
  • hollow heart: no more than 3%
  • internal rust spot: no more than 3%
  • black scurf (Rhizoctonia solani): No more than 1.5% with up to 10% surface area affected or 1% with up to 10 -12.5% surface area affected
  • powdery scab (Spongospora subterranea): No more than 1% with up to 5% surface area affected
  • silver scurf (Helminthosporium solani): No more than 1% with up to 5% surface area affected
  • dry rot (Phytophthora spp, Alternaria spp, Fusarium spp) 0% at SE grade
  • blight 0% at SE grade

A post harvest virus test is required. SASA will advise on the types of tests available and will charge for the test. The post harvest virus test certificate should accompany the phytosanitary certificate. The following virus tolerances are applied:

  • 0% of any virus allowed at SE
  • PMTV: 0%
  • TRV: 0%
  • PLRV, PVY and PVA: Combined no more than 2% at E. Individually no more than 1%
  • PVX and PVS: Combined no more than 3% at E. Individually no more than 2%

Other requirements:

  • import permit: required
  • varieties permitted: Only Ministry of Jordon approved varieties or varieties for trials purposes (less than 5t)
  • grades permitted: SE, E and A
  • size: Tubers should be between 28 and 60mm in diameter. A tolerance of 3% each way is allowed for under- and oversize.
  • sprouts: The length of sprouts should not exceed 20 mm on arrival. The tubers should be fully mature, true to type, and uncut.
  • packaging: New jute bags only. Exporters name, product name, seed grade and net weight must  e clearly printed on the bags. If wood packaging is used (e.g. boxes, pallets), this should be treated and certified. Wood material should comply with International Standards for Phytosanitary Measures (ISPM 15) on wood packaging materials.
  • procedures on arrival: at the port of entry, the consignment will be inspected within 48 hours after the documentation is complete. The consignment will be examined thoroughly to confirm size, mechanical damage, fungal, bacterial and physiological disorders, pest damage etc.
  • samples will be taken for serological testing.
  • documentation: consignment must be accompanied with phyto, virus test cert, cert of origin, invoice and non GMO cert.

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

1. The seed potatoes are produced in an area free from Potato wart disease (Synchytrium endobioticum).

2. Nil Potato cyst nematode (Globodera pallida and G. rostochiensis) as indicated by laboratory tests on soil samples taken from fields prior to planting, growing crop inspection and the testing for Potato cyst nematode of soil collected from the potato tubers prepared for export to Jordan.

3. Potato ring rot (Clavibacter michiganensis ssp. sepedonicus), Root-knot nematodes (Meloidogyne chitwoodi and M. fallax), Colorado beetle (Leptinotarsa decemlineata), Japanese beetle (Popillia japonica), Potato Flea Beetle (Epitrix spp) and Potato tuber moth (Phthorimea operculella, Symmetrischama tansolias and Tecia solanivora) are not known to exist in Scotland.

4. The consignment was inspected and found to be free from plant damaging snails and slugs.

5. Potato brown rot (Ralstonia solanacearum) and Dickeya spp. (Erwinia chrysanthemi) have never been found in Scottish potatoes

6. Potato tuber nematode (Ditylenchus destructor) has not been recorded in commercial stocks of potatoes grown in Scotland.

7. The seed potatoes were subjected to a post harvest virus test and found to be within the tolerances laid down by the Jordon authorities.  

8. PSTV, Pepino mosaic virus and Oyster Yellow Phytoplasma have never been recorded/found within Scottish potato crops.

9. The potatoes in the consignment are suitable for seed purposes. The consignment has been inspected and meets the requirements for seed potatoes entering Jordon.  The crops from which they were drawn were examined whilst growing by the Department's Inspectors and were certified as meeting the growing crop requirements laid down by the classification scheme. The crops are also confirmed as having no PMTV and TRV found during growing crop inspection.