China’s move to test imported meat for the novel coronavirus is threatening to derail trade with the world’s largest pork consumer, hurting American farmers who had seen shipments boom.

While China announced it has halted imports of American soybeans, a mysterious buyer has stepped up. The U.S. Department of Agriculture announced Aug. 7 a sale of 165,000 metric tons of the oilseed to “unknown destinations.”

After a cold, soggy start to the season, it’s finally feeling like summer in the Midwest, and corn fields are recovering. A turn toward warmer weather should be beneficial for the battered crop, and government data signal that conditions are starting to bottom out.

A looming shortfall in U.S. corn production after a historical spat of wet weather means wheat is back on the menu at cattle feedlots in the southern Plains.

Corn prices have been on an epic run. Now, soybeans could soon be catching up.

China, the world’s largest consumer of pork, made its biggest purchase of the meat from the U.S. in nearly two years as African swine fever reduces hog herds and drives up prices.