The U.S. Department of Agriculture cut its corn-crop estimate by 4.1 percent, reduced the soybean forecast by 5.2 percent, and said spring-wheat production will be 5.2 percent below what it predicted in July. The harvests for all three crops would be less than expected by analysts surveyed by Bloomberg.
Parts of the Midwest, the main growing region, were the hottest since 1955 last month. Smaller supplies of corn may increase costs for ethanol refiners such as Poet LLC, Archer Daniels Midland Co. and Valero Energy Corp. and meat producers Tyson Foods Inc. and Smithfield Foods Inc., which buy the grain for feed. The price of corn, the biggest U.S. crop, jumped 68 percent in the past year before today.