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
Smaller U.S. production and steady global demand could provide better pricing opportunities in 2026.
More than 1,100 residents and farmers have signed a letter urging Ag Secretary Brooke Rollins to step in, saying the proposal threatens irrigation supplies and long-term farm viability in the region.
Producers across the country balanced winter weather disruptions, shifting export demand, and tightening margins as year-end decisions come into focus.
Reviewing risk management now can help dairy and livestock producers enter 2026 with clearer margins and fewer surprises.
Canada’s new voluntary Grocery Sector Code of Conduct will take effect on Jan. 1, a goodwill effort to promote fairness and transparency between retailers and support farms that sell directly to stores.
With record grain harvests and rising global ethanol demand, leaders across the ag and energy sectors are pushing for year-round E15 sales to mitigate the strain on grain trade.

LATEST STORIES BY THIS AUTHOR:

Midland County Livestock Association President Brandon Mitchell reflects on another strong year for the event, including a premium sale that once again topped the million-dollar mark.
The Midland County Junior Livestock Show in West Texas features a competitive steer showcase highlighting top-quality cattle and the accomplishments of driven youth exhibitors.
CoBank Knowledge Exchange’s Jeff Johnston shares the group’s positive perspective on expanding data centers into rural areas and weighs the risks and rewards for those communities.
Farm CPA Paul Neiffer discusses how January’s WASDE report could impact ARC and PLC payments and updates on disaster relief programs as farmers navigate a challenging market environment.
Texas Commissioner of Agriculture Sid Miller joined us to discuss data center expansion, farmland preservation, rural economic impacts, and imminent cattle biosecurity concerns affecting agriculture today.
The Pennsylvania Farm Show continues through Saturday, wrapping up another successful year of celebrating agriculture in the Commonwealth.
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.