More Cases of New World Screwworm Detected Within 200 Miles of U.S. Border

New World Screwworm cases in Mexico, including one within 200 miles of the U.S. border, are adding pressure to livestock markets and trade decisions.

screw worm again 1280.jpg

Market Day Report

MEXICO CITY (RFD-TV) — New World Screwworm remains isolated in Mexico, but it is closer to the U.S. southern border than ever before. The first new case was in a calf located less than 200 miles from the U.S. border, marking the parasite’s closest approach to America. The second case was reported the following day in a goat near Mexico City.

Rich Nelson, chief strategist with Allendale, Inc., told RFD-TV News that the markets are closely watching that action this week.

“We’re watching those two updates from last week where USDA did confirm this discussion about two new cases of screwworm in Mexico,” Nelson said. “One of those cases was within 200 miles of the border. So as far as it stands, starting out this week, a little premium is still being added from that screwworm concern -- and the confirmation that we will not be raising that or opening that Mexican border.”

Authorities report more than 13,000 cases of New World Screwworm in Mexico since late 2024.

Related Stories
Prepare for softer milk checks into winter, watch cull-cow values and timing, and stress-test cash flow as product prices recalibrate.
Expect incremental near-term lift for feed grains, proteins, and ethanol as tariff cuts and smoother approvals translate into real orders.
While there has been an increase in outbreaks of Highly Pathogenic Avian Influenza (HPAI) this migration season, the CDC says the public health risk is low.
Cattle markets are collapsing this week, and analysts say that several factors are at play. Consumer beef prices also remain near all-time highs, threatening long-term demand.
Trade pacts with Malaysia and Cambodia unlock tariff-free and preferential lanes for key U.S. farm goods, expanding long-term demand in Southeast Asia.
Alan Bjerga, Senior Vice President of Communications with the National Milk Producers Federation (NMPF), shares updates and resources available to dairy producers.
FarmHER Erin Cumings shares how Nationwide’s “Every STEP Counts” helps farm and agribusiness owners prioritize safety.
The idea of buying more beef from Argentina does not sit well with much of farm country, raising some questions from analysts and producers.
Shaun Haney, Host of RealAg Radio, discusses President Trump’s move to halt trade talks with Canada and Mexico over a commercial about tariffs launched by the Government of Ontario.

Agriculture Shows
From soil to harvest. Top Crop is an all-new series about four of the best farmers in the world—Dan Luepkes, of Oregan, Illinois; Cory Atley, of Cedarville, Ohio; Shelby Fite, of Jackson Center, Ohio; Russell Hedrick, of Hickory, North Carolina—reveals what it takes for them to make a profitable crop. It all starts with good soil, patience, and a strong planter setup.
Champions of Rural America is a half-hour dive into the legislative priorities for Rural America. Join us as we interview members of the Congressional Western Caucus to learn about efforts in Washington to preserve agriculture and tackles the most important topics in the ag industry on Champions of Rural America!
Featuring members of Congress, federal and state officials, ag and food leaders, farmers, and roundtable panelists for debates and discussions.
The goal of “Where the Food Comes From” is as simple as its name implies — host Chip Carter takes you along on the journey of where our food comes from — and we don’t just mean to the supermarket (though that’s part of the big picture!). But beyond where it comes from, how it gets there, and all the links in the chain that make that happen.
Join markets specialist Scott Shellady, better known as the Cow Guy, as he covers the market-close, breaking down headlines that drive the commodities and equities markets with commentary from respected industry heavyweights.