Trump’s letter threatened new tariffs on Mexico due to a lack of progress in challenging the country’s drug cartels.

A detection of the New World Screwworm closer to the United States will keep the ports closed to livestock from Mexico.

The US stopped livestock imports from northern Mexico due to the screwworm fly threat. USDA Secretary Rollins announced border tightening and a $30M sterile fly program.

A group of canines are training to detect the smell of screwworm, a flesh-eating pest that has infected Mexico's cattle herd and disrupted livestock trade with the United States, offering a glimmer of ...

Should the flies reach the states, the larvae could infest livestock, pets, wildlife and, possibly, even people.

The lowest U.S. cattle inventories since the 1950s have propelled beef prices to all-time highs in recent months.

The United States has temporarily closed its southern border to livestock imports due to the northward spread of the New World screwworm fly in Mexico, a flesh-eating parasite posing a significant ...

The same seems to be true of the grain markets vis-à-vis the Russian war in Ukraine.  However, Trump is upping the rhetoric ...