Farmers warn that cuts to, and changes in, inspections at the Port of Dover raise the risk of animal disease being brought into the UK. The Government wants to cut the budget for spot checks for illegal meat in cars and coaches by 70%, and later this year plans to move the new inspections of commercial traffic from Dover to an inland site. These are the border controls which are being brought in post Brexit; they've been postponed five times but are due to start in April.

Drone tech is often touted as the next big thing in agriculture. But how useful is it?

What happens if we leave nature alone? That's the starting point for the first edition of a new programme here on BBC Radio 4 which starts later today: Rare Earth.

Presented by Charlotte Smith and produced by Beatrice Fenton.