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
New rule speeds leasing and permitting for federal oil and gas development
Texas Farm Bureau President Russell Boening joined us with the latest update on storm conditions and impacts across the state.
Meat stocks rose seasonally but remain below last year overall, while tighter butter inventories could support dairy prices, and belly stocks warrant close watch for pork markets.
Year-round E15 remains on the table, but procedural caution and competing regional interests pushed action into a slower, negotiated path.
Heavier weights and strong late-year slaughter supported December production, but lower annual totals highlight ongoing supply tightness heading into 2026.
Rising import pressure and tougher export competition are likely to persist into 2026, supporting domestic supplies while capping export growth.

LATEST STORIES BY THIS AUTHOR:

ASFMRA’s Dennis Reyman discusses farmer sentiment, land values, and how global and financial pressures are shaping decision-making in the ag land market.
Richard Gupton of the Agricultural Retailers Association discusses the EPA’s new decision on over-the-top Dicamba and what it means for growers this year.
Mike Spier, president and CEO of U.S. Wheat Associates, discusses the new U.S.-Bangladesh trade agreement and its potential benefits for U.S. wheat growers.
Gretchen Kuck of the National Corn Growers Association joined us to discuss the Ag Coalition for USMCA’s report findings and expectations ahead of the upcoming USMCA review.
The agreement formalizes coordination between the two departments to address security concerns affecting U.S. agriculture.
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.