'Whiffy wheat' GM crop proves a failure

A controversial flagship GM wheat trial has been called a failure after more than £2m of public money was spent on the project.

The so-called "whiffy wheat" experiment took five years to develop and was designed to create a genetically-engineered crop that wards off pests by releasing a scent.

The crop worked in lab settings, but was a failure out in the field.

Claire Marshall reports.