South African farmers are confronting a severe diesel shortage that threatens winter wheat and corn production as Middle East tensions drive up fuel costs. Rossouw Dippenaar, who farms near Riebeek-West, has secured only 6,000 liters of the 40,000 liters needed for planting. Retailers are limiting purchases to prevent stock depletion.

Global oil prices surged 40% since US and Israeli strikes on Iran began February 28, while the rand plunged. South Africa imports most of its fuel and 80% of its 2 million tons of annual fertilizer, with a third of crop nutrients coming from the Middle East. Wheat farmers face a five-day US strike halt on Iranian energy infrastructure announced by President Trump, but trade normalization remains unlikely.

Rising input costs could devastate production in sub-Saharan Africa's largest commercial wheat industry. Fuel and fertilizer account for about half of grain farmers' production costs, with diesel prices set to rise nearly 50% in April. Industry groups warn of severe impacts on farmer viability and food security.