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
Nearly everyone in the South Texas ag community appears extremely worried about the potential of a New World screwworm epidemic, according to a local veterinarian. RFD NEWS Correspondent Frank McCaffrey reports.
Large-scale land purchases signal rising competition for ranchland, reinforcing its value while reshaping long-term access and control in rural agriculture.
Jack Hubbard, with the Center for the Environment and Welfare, shares context and perspective on the controversial letter about Prop 12 circulating in Washington and how a review shows it misled the public.
Decoupled base acres may amplify income inequality and distort planting decisions as farm program payments increase.
Ethanol and corn groups are not hiding their disappointment over new reports that the bill to allow year-round E15 sales failed as Congress forges ahead on government funding, with another shutdown looming.
While row crops are expected to see softer impacts, analysts say severe weather of this magnitude will not be as kind to cattle producers.

LATEST STORIES BY THIS AUTHOR:

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.
The EPA has approved over-the-top dicamba applications for the 2026 and 2027 growing seasons, outlining new rules that impact herbicide use for U.S. crop producers.
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.
Texas cowboy chef and host of RFD Network’s Twisted Skillet, Sean Koehler, shares an elote-style street corn dip just in time for Super Bowl Sunday. This skillet-cooked corn dish combines open-fire cooking and bold regional flavors for a delicious twist on Mexican Street Corn.
The USDA’s February WASDE report looms as the CME Ag Economy Barometer shows declining farmer confidence, and more ag industry groups calling for swift policy action.
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.