German chemicals group BASF has been given the go-ahead to carry out a trial of genetically modified potatoes at a farm in East Yorkshire.

The company will have the licence to carry out the experiments until 2011 but campaigners have critcised the approval.

“If this trial goes ahead, it will not only risk a huge financial blow for local farmers, but also threatens to contaminate future non-GM potato supplies,” said Friends of the Earth GM campaigner Clare Oxborrow.