Importers of US produce have moved to reassure UK retailers that there will be no shortages following devastating American frosts.

The worst frosts in over 20 years hit US production of apples, pears and cherries during early spring, causing producers to downgrade earlier predictions of record crop volumes.

Top fruit output is now expected to be 20% lower than originally forecast, while cherry production will be down 10-15%.

Producers insist they will still be able to meet export market demand, though quality could be affected.

"Although northwest pear-growing regions have been hit by the coldest temperatures for years there will still be sufficient fruit to meet demand in the coming season. But there could be more second grade fruit than average," said Kevin Moffit of USA Pears.

Cherry volumes in Washington and Oregon are expected to be down, although this will be offset by new production areas coming on stream .