A trial plot of genetically modified potatoes is to be planted at a secret location on a farm in Norfolk.
The planting was set to go ahead on Tuesday 8 June to test whether genes from two wild varieties could help protect plants from late blight.
Previous potato trials have been vandalised and £20,000 has been spent on security at the farm to keep out anti-GM campaigners.
“UK potato growers spray crops 10-15 times a year and in 2007 Europe ran out of chemicals to control blight, it was such a wet year,” said Professor Jones.
“If our research is successful, this will cut chemicals and carbon dioxide generated by the use of tractors.”