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
T to Z

Thailand

Seed potatoes (updated 16 July 2019)

Wart disease

Crops for export to Thailand should not have been grown within 5 km of areas scheduled for potato wart disease (Synchytrium endobioticum). 

Growing crop tolerances

Inspector's Instructions TH/2009/02 apply.

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

  • Tobacco Rattle Virus (TRV): NIL
  • PVA & PVM: NIL 

Tuber tolerances

Inspector's Instructions TH/2009/02 apply.

Minimum tolerances for seed export apply, except for:

  • Gangrene (Phoma foveata): NIL
  • Spraing (PMTV): NIL
  • Powdery scab (Spongospora subterranea): no more than 1.5% of tubers by weight should have more than 5% surface area covered
  • Adhering (caked) soil: up to 5% of tubers by weight may have up to 20% surface area covered
  • Loose soil: 0.2% by weight (max. 100 g per 50 kg bag)

  • Skin spot (Polyscytalum pustulans):

Surface area cover Max. % tubers by weight
5% or more 1.5%
of which 12.5% or more 0.5%
less than 5% not countable

Other requirements

Import permit: required

Notification: all crops intended for export to Thailand should be notified to SASA at the start of the growing season. Failure to do so may mean a Phytosanitary Certificate cannot be issued for export. It is the exporter's responsibility to check that a laboratory virus test has been carried out for any crop intended for Thailand before applying for a Phytosanitary Certificate.

Packaging: new bags of 25 - 50 kg.

Certificates: for sea freight, the container number(s) (for frieght only) and seed potato certificate number of seed potatoes in every container must be recorded on the Phytosanitary Certificate. 

Procedures on arrival: at the port of entry in Thailand, a minimum of 600 tubers (2 bags of 25 kg each) from each identified crop will be randomly selected from the consignment. Tubers may be washed as part of the procedure. If skin spot or powdery scab exceeds the tolerance, a further 8 bags of 25 kg each will be examined. If the consignment is still over tolerance on the basis of 10 bags, it will be rejected and not be allowed to be regraded. Rejected consignments will have to be re-exported or destroyed. 

Laboratory tests: Random tuber samples will be laboratory tested for viruses (PVA, PVM, PVY, PLRV) by the Thai Plant Health Authorities. There is a nil tolerance for PVA & PVM and 4% tolerance for PVY & PLRV.

Associated regulations or legislation

Notification of the Department of Agriculture: Conditions for Import of Seed Potatoes from Scotland B.E. 2552 (2009)

Plant Quarantine Act B.E. 2507 (1964) amended by Plant Quarantine Act B.E. 2542 (1999) and Plant Quarantine Act B.E. 2551 (2008)

Notifications of the Ministry of Agriculture and Cooperatives, No. 5 (2007) and No. 9 (2008): Specification of plants and carriers from certain sources as prohibited articles, of exceptions and conditions under the Plant Quarantine Act

Notifications of the Ministry of Agriculture and Cooperatives, No. 6 (2007) and No. 7 (2007): Specification of plant pests as prohibited articles under the Plant Quarantine Act 

Notification of Department of Agriculture: Conditions for Import of Seed Potatoes from Scotland B.E. 2552 (2009)

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

The seed potatoes in this consignment were produced in Scotland in accordance with the conditions governing entry of seed potatoes into Thailand.

Ware potatoes

PCN

The field in which the potatoes were grown must have been tested for the presence of Potato Cyst Nematodes (Globodera rostochiensis and G. pallida) pre-planting or where this has not been carried out lot freedom from PCN using a consignment test must be demonstrated (PCN testing for export applies). There will be a charge for these tests. 

Tuber tolerances

Minimum tolerances for ware export apply, except for:

Loose soil: 0.2% by weight (max. 100 g per 50 kg bag)

Tubers should either be washed, or treated with a sprout inhibitor after being thoroughly brushed. 

Other requirements

Import permit: required.

Certificates: for sea freight, the container number(s) must be recorded on the Phytosanitary Certificate. 

Associated regulations or legislation

Notification of the Department of Agriculture: Conditions for Import of Potatoes for Processing from Scotland into Thailand B.E. 2552 (2009) 

Plant Quarantine Act B.E. 2507 (1964) amended by Plant Quarantine Act B.E. 2542 (1999) and Plant Quarantine Act B.E. 2551 (2008)

Notifications of the Ministry of Agriculture and Cooperatives, No. 5 (2007) and No. 9 (2008): Specification of plants and carriers from certain sources as prohibited articles, of exceptions and conditions under the Plant Quarantine Act

Notifications of the Ministry of Agriculture and Cooperatives, No. 6 (2007) and No. 7 (2007): Specification of plant pests as prohibited articles under the Plant Quarantine Act

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

  1. The potatoes in this consignment were produced in Scotland in accordance with the conditions governing entry of potatoes for processing to Thailand and inspected and found to be free of quarantine pests. 
  2. Samples of soil from the land on which these potatoes were grown were drawn and tested prior to planting by the official services and no trace was found of Potato cyst nematodes (Glodobera pallida andG. rostochiensis) or lot freedom from PCN has been demonstrated by consignment test.
  3. The potatoes in this consignment have been washed or the potatoes have been treated with a sprout inhibitor.