"How do you expect to make fries out of these?" asked the Belgian farmer in frustration, as he uprooted another plant and examined it.
"Normally, they should be at least four times this size," he said.
Like many Belgian farmers this summer, Comijn's harvest in Amay, near the eastern city of Liege, has been hit by a devastating combination of weather extremes.
First, a spate of heavy rain and storms at the end of spring weakened the soil. Then, a…