The government is expected to give the go-ahead to trials of genetically modified potatoes.

The crop will be trialled in Cambridgeshire and Derbyshire by biotechnology company BASF, according to reports in The Times and the Financial Times.

"These GM trials pose a significant contamination threat to future potato crops. We don't need GM potatoes and there is no consumer demand for them,” said Friends of the Earth GM campaigner, Clare Oxborrow.