“Red Diesel is putting us in the red,” said White, who is predicting food shortages in the coming months and years, caused by a reduction in planting.
“If you are not going to get as much milling wheat, then you won’t get as much bread,” she explained.
The price of red diesel rose to £1.38 on 10 March, following the outbreak of the conflict in the Middle East on 28 February, according to Boiler Juice, which tracks prices across a network of UK suppliers.
It has fallen since the US and Iran announced a ceasefire on 8 April, but remains 56% higher than before the war.
White is calling on the government to help.
A government spokesperson said it had extended a 5p fuel duty cut until September and red diesel continued to benefit from an 80% tax discount.
But White, a mother-of-two, said her family was having to rethink household expenditure, including nursery costs, which were “going up as well”.
