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
NCBA Chief Counsel Mary-Thomas Hart breaks down CAFO permits, EPA enforcement, and what cattle producers need to know as rules continue to evolve.
RFD NEWS correspondent Frank McCaffrey spoke with U.S. Congressmen Henry Cuellar (D-TX) and John Rose (R-TN), who say bipartisan cooperation will be key to getting the Farm Bill to the president’s desk.
Low prices are painful now, but production response could support stronger milk markets later in 2026.
Merck’s Gary Tiller discusses new virtual fencing technology and how fence-free livestock management could change the way ranchers manage land and cattle.
At CattleCon 2026 in Nashville, RealAg Radio’s Shaun Haney discusses profitability, consumer demand, and how the integrated U.S.–Canada beef supply chain impacts cattle producers across North America.
Top issues facing the beef industry took center stage at CattleCon this year in Nashville.

LATEST STORIES BY THIS AUTHOR:

Farmer Ed Bell shares how AGRAbility helped him return to his family’s strawberry farm and inspire resilience, legacy, and hope in rural life.
Weskan Grain CEO Will Bramblett discusses the antitrust lawsuit filed by grain farmers and agribusinesses, and its potential implications on rail competition and market access.
RealAg Radio host Shaun Haney shares insight into Canada’s trade push in Mexico and what it could signal for agriculture and the USMCA moving forward.
Jim Rothermich with the American Society of Farm Managers and Rural Appraisers joined us to share the latest on farmland real estate markets across the Midwest.
Lawmakers request information from CEO Scott Stump over sponsorship concerns and potential implications for the organization’s nonprofit status.
Roger McEowen with the Washburn School of Law reviews key highlights from the House Agriculture Committee’s latest farm bill proposal.
Agriculture Shows
Special 3-part series tells the story of the Claas family’s legacy, which changed agriculture forever.
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.