Many varieties of apples that were feared lost may still be growing in old gardens
Around half our apples are thought to be imported, but at one time thousands of varieties were grown here in Wales.
Now enthusiasts are hoping that they may be able to uncover some of the lost ones and help create new versions.
The Tree Fruit Society of Wales is asking visitors to bring their home-grown apples to The Really Wild Festival in St Davids.
The society is hoping to source graft wood of interesting varieties next winter to create new trees.
That way they hope to ensure the survival of both old and new varieties of apple trees.
The society's Lesley Jones said: "What we are looking at is obviously to encourage people to grow their own fruit trees."
"Some of these might be ones lost to cultivation."
But identifying an apple is no easy thing - there are around 35 different factors involved.
Now the society is asking people to bring around four ripe apples from their trees and they will try to identify the type of apple tree they have, and the best way to look after it.
"It's a lot of detective work," said Ms Jones. "We're trying to find the lost varieties and encourage people to grow their own fruit as well.
"The Victorians were great keepers of fruit and their orchards were the best."
The Really Wild Festival is in St David's on 4 and 5 September, 2010.