U.S. grains: Corn rises on strong demand, disease concerns

Published: August 29, 2025

,

Photo: JHVEPhoto/Getty Images Plus

Chicago | Reuters—Chicago Board of Trade corn futures firmed on Friday on support from strong international demand, concerns over disease in the U.S. Midwest and technical support, analysts said.

Soybeans ended higher on technical trading, though a lack of Chinese demand for U.S. supplies hung over the oilseed market. Wheat headed higher under technical support.

Traders were adjusting positions at the end of the month and before a long weekend in the United States, where financial markets will be closed on Monday for the Labor Day holiday.

Read Also

Planting of wheat, canola and other crops is set to gather pace this month across much of Australia and farmers need ample supplies of crop nutrients to support early growth. Photo: Sonia Third

Australian farmers shift to less fertilizer-intensive crops as Iran war costs surge

Australian farmers are expected to favour less nitrogen-intensive crops such as barley over wheat and canola in the upcoming season due to rising fertilizer and fuel costs.

The most active corn contract Cv1 ended 10-1/4 cents higher at $4.20-1/4 per bushel, and CBOT wheat Wv1 settled 5-1/4 cents higher at $5.34-1/4 per bushel. Soybeans Sv1 settled 6-1/2 cents higher at $10.54-1/2 per bushel.

Favourable prospects for the U.S. soybean and corn harvests were also curbing Chicago prices.

Corn has been underpinned by brisk exports, concerns over Tar Spot and Southern Rust in the U.S. corn belt and technical support.

U.S. weekly corn export sales reported on Thursday topped 2 million metric tons for the second week in a row.

Soybean prices had climbed to a two-month peak last week, buoyed by hopes that China would revert to buying U.S. crops after months of shunning the origin in a wider trade war with Washington. But no such purchases have been confirmed.

Traders will be monitoring U.S.-Chinese talks in the coming days, with senior Chinese trade negotiator Li Chenggang expected in Washington.

“Beans are limited by a lack of China demand,” said Randy Place, analyst at Hightower Report. “That limits the rallies until they show signs of stepping up and buying.”

Abundant production from Northern Hemisphere harvests and an improving outlook for crops in Southern Hemisphere exporters Argentina and Australia have weighed on wheat prices this week.

—Additional reporting by Gus Trompiz in Paris and Naveen Thukral in Singapore.

explore

Stories from our other publications