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
Brooks York of AgriSompo discusses projected prices and how farmers are adapting their crop insurance strategies as the price discovery period comes to a close.
For the broader agricultural industry, a railroad antitrust case in Kansas could lead to the dismantling of legacy regulatory shields, creating a more fluid, market-driven transportation grid that prioritizes moving crops efficiently over protecting historic rail monopolies.
Ranger Road Fire has burned 283,000 acres across Kansas and the Oklahoma Panhandle and is nearing containment, as ranchers begin assessing cattle and infrastructure losses as they look toward recovery.
Domestic beef demand remains solid, with the strongest growth occurring through retail channels, according to consumers surveyed in the latest K-State Meat Demand Monitor.
The long-term viability of a ranching operation often hinges on how effectively its owners navigate the overlapping layers of IRS regulations, state tax incentives, and USDA disaster programs.
Fed cattle numbers are down two percent in February, according to the latest USDA report. Marketings fell 13 percent, signaling continued pressure on beef prices in 2026.

LATEST STORIES BY THIS AUTHOR:

Delays on year-round E15 keep potential corn demand and fuel savings in limbo.
Three junior heifer exhibitors continue their trek through the Texas Swing at the San Antonio Stock Show, balancing competition, friendship, and life on the road.
Lynn County 4-H students showcase robotics and STEM skills at the San Antonio Stock Show, highlighting how ag education programs are preparing the next generation in agritech.
University of Nebraska President Dr. Jeffrey Gold discusses lingering winter illnesses, shares strategies to boost immunity, and advises rural communities on when to seek medical care on Rural Health Matters.
Nick Westgerdes of the American Society of Farm Managers & Rural Appraisers breaks down farmland values, rental rates, and sales trends in Illinois, while previewing the upcoming land values conference for 2026.
As National FFA Week continues, Ag Teacher Appreciation Day serves as a reminder of the lasting impact ag educators have on students, communities, and the future of American agriculture.
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.