Beef futures rise on screwworm threat near border - CME Lean hog prices climb as pork cutout value inches higher23 September 2025 23 September 2025 2 minute read 2 minute read By: By: Global Ag Media North AmericaChicago Mercantile Exchange (CME) live cattle futures closed higher on Monday after news that New World screwworm, a flesh-eating parasite, was detected 70 miles from the US-Mexico border, Reuters reported, citing analysts. Analysts believed the news would mean the US-Mexico border will be closed to feeder cattle imports for the foreseeable future. The border has been closed to feeder imports for months to prevent the spread of screwworm and has further constricted an already tight cattle supply. October feeder cattle rose 7.25 cents to end at 361.35 cents per pound. The USDA priced choice cuts of beef at $381.39 per hundredweight (cwt) on Friday afternoon, down 66 cents from Thursday.