Planting Potatoes: the definitive guide

Potato Seed

All there is to know about potato seed

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The main reasons to buy JBA Scottish Basic seed potatoes are:

Seed potatoes sold within the European Union are classified in 3 categories:

  • Pre-basic
  • Basic
  • Certified

Certified category seed potatoes are not produced in Scotland to reduce the risk of disease in Pre-Basic and Basic crops.

JBA’s Scottish seed potatoes are known as Basic seed and are grown from tubers that are from specialist, officially approved Pre-basic producers before being used to produce the high grade Basic seed or lower grade Certified seed that is marketed to domestic and export markets, including lower class CC seed grown in England and Wales.

This means that JBA’s Pre-basic Scottish seed potatoes are free from defects and diseases such as leaf roll, severe mosaic, total virus, mild mosaic, and blackleg. In comparison, CC class seed potatoes can have between 2-5% of plants affected by the same diseases.

Growing crops are monitored throughout the growing season and are officially inspected at least twice for virus diseases, blackleg and varietal purity.

Crops are examined for aphids and, if an aphid threshold is exceeded,are subject to post-harvest tuber testing.

All consignments of tubers are officially inspected for rots, blemishes and defects.

Only seed stocks that meet strict standards following crop and tuber inspections are classified as Scottish Pre-basic or Basic seed potatoes.

For more information see the British Potato Variety Database Classification.

Scottish Seed Potatoes

Ordinary supermarket and garden grown seed potatoes carry more spores of bacteria and fungal pests than high grade Scottish Basic seed potatoes. In addition, non-certified seed can carry PCN eelworm or can be treated with sprout suppressant which will stop your crop from growing properly. Mild mosaic disease occurs when the aphid-transmitted Potato Virus A infects plants along with Potato Virus X

Chitting potatoes for planting