Are Cattle Producers Ready if New World Screwworm Crosses the Border?

Large animal veterinarian Dr. Rosalyn Biggs with Oklahoma State University warns producers may not be prepared for the real threat of New World Screwworm.

Stillwater, Okla. (RFD-TV) — New World Screwworm cases in Mexico are up 32 percent, sparking growing concern in the U.S. cattle industry.

Dr. Rosalyn Biggs, an assistant professor of veterinary clinical sciences at Oklahoma State University, warns producers may not be prepared if the parasite crosses the border. Access to appropriate facilities for treatment and remembering how severe past outbreaks were are both essential.

“It’s one of my biggest concerns, frankly, with New World Screwworm, is access to facilities, [do producers have] access to be able to treat right?” Dr. Biggs said. “Facilities, as far as that investment goes -- it’s got to be something that makes sense. We’ve got to be able to get those animals caught. Get them handled based on what we could potentially face. That, and I have a concern that the vast majority of producers don’t remember it. That includes me. I have to listen to my father and others who had to deal with New World screwworm on a daily basis.”

Biggs says stopping the spread of Screwworm is all about daily inspections, and producers need to think of ways to make that easier now rather than later.

“Especially with the looming New World Screwworm, we had the announcement — I saw it in the middle of the night — that it’s 70 miles from the border,” Biggs continued. “It looks like it’s inching closer. If there’s any time to invest in facilities, it’s probably now. What you may find is that handling facilities will improve your cattle experience if you get good ones, right? I don’t know how many times we’ve just been dealing with something, dealing with something, dealing with something, and we finally make the investment. Why did we wait so long to do that?

Biggs said producers should keep animal handling in mind. If you finally catch that one hard-to-wrangle cow, she thinks it may be best to send them to the sale barn before issues arise, if treatment is needed.

“That’s another component, too. For that, you can have your veterinarian out. It’s a new, fresh set of eyes on it. Having facility consoles, I think, is a great approach and, again, now’s the time to invest.”

Related Stories
Mike Steenhoek of the Soy Transportation Coalition shares how extreme winter weather is affecting the ag transportation network and what producers should keep in mind as conditions slowly improve.
Matt Brockman, Communications Director for the Fort Worth Stock Show and Rodeo, joined us with a look at how the legendary event is moving forward—weather and all.
Mixed product pricing and rising milk supplies suggest margin management will remain critical as 2026 unfolds.
Roger McEowen, with the Washburn School of Law, offers an in-depth look at two of the top legal issues of 202. Today, he walks through last year’s Waters of the United States (WOTUS) ruling and “lawfare.”
Marilyn Schlake with the UNL Department of Agricultural Economics joined us for a closer look at the evolving role of livestock sale barns.
RFD NEWS correspondent Frank McCaffrey recently spoke with Dr. Mike Vickers, a South Texas rancher, who says illegal border crossings have dramatically declined in the last year.

LATEST STORIES BY THIS AUTHOR:

China’s reliance on imported soybeans remains entrenched, shaping global demand and trade leverage.
Wed, 2/18/26 – 7:30 PM ET
While access to China remains uncertain, U.S. beef exporters are finding resilience and opportunity in other global markets, which could help maintain industry value and expand export opportunities.
American Farmland Trust shares guidance, research, and policy solutions to help farmers navigate the growing threat of PFAS, or “forever chemicals,” contaminating U.S. farmland.
Dr. Jeffrey Gold, president of the University of Nebraska-Lincoln, joins us on Rural Health Matters to discuss winter safety reminders and preparedness.
Agriculture Shows
Hosted by Scott “The Cow Guy” Shellady and RFD News Markets Specialist Tony St. James, Commodity Talk delivers expert insight into the day’s ag commodity markets just before the CME opens. Only on RFD-TV and Rural Radio SiriusXM Channel 147.
A look at the news, weather and commodities headlines that drove agriculture markets in the past week.
Everything profits from prairie. Soil, air, water — and all kinds of life! Learn how you can improve your land with prairie restoration, cover crops and prairie strips, while growing your bottom line.
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.