CHANGING tastes have been blamed for a £100 million collapse in sales of Scottish tatties last year.

Despite the humble potato's essential role in ever popular dishes such as haggis, neeps and tatties and the fish supper, a switch to rice and pasta mashed sales last year.

Combined with a bumper potato harvest across Northern Europe, it pushed down prices and wiped 38 per cent off the value of spud sales, contributing to a slump in Scottish farming.

The news prompted calls for Scots to tuck into more spuds.

Dr Rob Clayton, director of the Potato Council, said: "Recent changes in consumption have affected all developed nations.

"It's vital potatoes remain a staple on Scottish plates.

"Although potatoes command over 80 per cent of the carbohydrates at retail level, in the last decade the market place has become crowded with competitive products."

He said the council's mission is to fight make potatoes on supermarket shelves "interesting and inspiring."

Official figures showed potato sales plummeted by £105m to £170m.

The dramatic fall contributed to a slump in Scottish agriculture, as total farm income dropped 18 per cent from £823m to £688m.

UK consumption began to stabilise towards the end of the year.

Rural Affairs Secretary Richard Lochhead said: "There was a good potato harvest but a fall in consumer demand has seen a challenging year for the potato sector."