March 18, 2026

International trade tensions putting squeeze on California tree nuts

California’s valuable agriculture sector is feeling the effects of the U.S.-Israeli war with Iran, with key export markets disrupted and fuel prices increasing during peak tree nut shipping season.

2 minute read
California’s valuable agriculture sector is feeling the effects of the U.S.-Israeli war with Iran, with key export markets disrupted and fuel prices increasing.

Since the war began on Feb. 28, Iran has responded to U.S. attacks by effectively closing the Strait of Hormuz, a crucial shipping route.

“As the largest exporting state, California and our exporters and producers are bearing the brunt of these market and export impacts,” Jay Van Rein, acting director of public affairs at the California Department of Food and Agriculture, said in a statement reported by AgAlert.

Van Rein said growers and distributors have reported canceled shipments and orders, delayed or diverted deliveries and skyrocketing shipping costs during peak shipping season for commodities such as tree nuts.

Robert Verloop, CEO of the California Walnut Board and Commission, said 70,000 tons of walnuts — about 10% of the billion-dollar sector’s yearly production — were either on the way to the Middle East or scheduled to be shipped there in March.

“That certainly is at risk,” Verloop said.

Tulare County nut exporter Bikram Hundal said one shipment of his bound for  Dubai’s Port of Jebel Ali was rerouted the Netherlands. Another was sent to Algeria, leaving him looking for new buyers for nuts he will most likely have to sell at a discount. 

“It’s going to be a loss,” Hundal said. 

Almonds, walnuts and pistachios rank among California’s top agricultural commodities, with almonds topping $5.6 billion in 2024, according to the California Department of Food and Agriculture.

Verloop said the Muslim holiday of Ramadan is a key time for consumption of California walnuts.

“California agriculture relies heavily on international markets, and increased volatility makes planning and contracting much more difficult in both the short and long term,” Matthew Viohl, California Farm Bureau federal policy director, told AgAlert.

Nearly half of the world’s traded urea and large volumes of other fertilizers are exported from Gulf countries via the Strait of Hormuz, according to Al Jazeera. With the U.S. already 25% short of fertilizer supply for this time of year, urea export prices from the Middle East have surged by 40%, according to Argus, a specialist energy and commodities price reporting agency.

According to Al Jazeera reporting, analysis by data and analytics company Kpler shows that as much as one-third of global fertilizer trade could be disrupted if the closure of the Strait of Hormuz continues.