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
Brent Graves, auctioneer and mentor, shares his journey supporting youth in agriculture, livestock competitions, and how he is turning junior livestock auctions into a classroom for youth in agriculture.
China’s beef policy risk stems from domestic volatility, making export demand inherently unstable. Jake Charleston with Specialty Risk Insurance offers his perspective on cattle markets, risk management, and producer sentiment.
U.S. Secretary of Agriculture Brooke Rollins said permanent access to the higher ethanol blend would provide farmers with much-needed certainty while supporting domestic crop demand.
Structural efficiency supports cattle prices and resilience — breaking it risks higher costs and greater volatility.
Strong pork demand and improving beef exports outside China support protein markets despite ongoing trade barriers.
The Farm Bureau’s honor highlights the important role farm dogs play on operations across the country, serving as dependable workers and trusted companions.

LATEST STORIES BY THIS AUTHOR:

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.
Auction manager and West Texas A&M University student Presley Graves joined us to discuss the growth of StockShowAuctions.com and its impact on youth in agriculture.
Texas Farm Bureau President Russell Boening joined us with the latest update on storm conditions and impacts across the state.
Mike Knotts with the Tennessee Electric Cooperative Association joined us with the latest on storm impacts, power restoration, and safety considerations following the ice storm.
Brooks York with AgriSompo joined us with his outlook on crop insurance and risk management following the recent winter storm that tore through most of the United States, including the Midwest.
Placements and marketings beat expectations, but declining on-feed totals and feeder constraints keep the supply story supportive for cattle prices into 2026. Dr. Derrell Peel, with Oklahoma State University, joined us to break down cattle-on-feed numbers and provide his broader market outlook.
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.