The Corn Belt’s wet spring and delayed corn planting was reflected in the June World Agricultural Supply and Demand Estimates (WASDE), published last week.

The report, which estimates ag production across a wide swath of products, projects U.S. corn acreage at 89.8 million, down 3 million acres from May’s estimate of 92.8 million acres. Similarly, the U.S. Department of Agriculture (USDA) report reduced projected harvested acres from 85.4 million to 82.4 million.

“I think what we’re seeing here is the first step of two or three adjustments due to the planting problem we had this spring,” said Chad Hart, Iowa State University Extension crop markets specialist. “I’d argue this response is...