Why were MPs wearing wheat on their lapels at PMQs?

Theresa May could have been forgiven for having flashbacks to her “naughtiest” childhood moment when she appeared at the despatch box to find herself surrounded by wheat.

The Prime Minister raised eyebrows during last year’s general election campaign when she told how her most mischievous exploit growing up had been to “run through” fields of the crop.

Arriving at Prime Minister’s Questions, Mrs May found MPs across the House, including Labour leader Jeremy Corbyn, had pinned ears of wheat to their tops.

The unusual accessory was adopted by many in a show of support for the Back British Farming campaign to raise awareness about the industry.

But Conservative party deputy chairman James Cleverly could not resist gently teasing the PM about her previous revelation.

He tweeted: “Lots of @Conservatives MPs wearing heads of wheat on the benches around @Theresa_May at PMQs today. Almost makes it look like she’s in a field.”