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
Farm Bureau Economist Faith Parum discusses the latest Farm Bill proposal and the path ahead for Congress and U.S. agriculture.
The Ranger Road Fire spreads from the Oklahoma Panhandle into Kansas as high winds and red flag conditions persist
President Donald Trump signed an executive order this week to accelerate domestic production of phosphorus and glyphosate, signaling that farm input availability is now treated as a national security risk.
Smaller supplies could support cotton prices despite weak demand.
Biofuel and corn producers await proposal as Renewable Fuels Association pushes for expanded ethanol access.
South Texas farmers say water shortages continue despite Mexico’s renewed payments under the 1944 Water Treaty.

LATEST STORIES BY THIS AUTHOR:

USDA’s 2026 Food Price Outlook projects food prices rising 3.1%, with higher beef costs and falling egg prices shaping consumer trends.
House Agriculture Chairman Glenn “GT” Thompson says the 2026 Farm Bill is bipartisan, with 82% of the bills incorporated into it receiving bipartisan support.
High beef prices are squeezing South Texas restaurants, but Texas Farm Bureau says consumer demand remains strong despite record costs.
According to the Louisiana Department of Agriculture and Forestry, fire crews remain on alert statewide as Red Flag conditions persist. Officials warn that even contained fires can reignite quickly under current weather conditions.
Stephenville FFA students showcase robotics skills at the San Antonio Stock Show, blending teamwork, technology, and competition for the next generation.
It’s National FFA Week, and today we’re celebrating Alumni Day by highlighting some inspiring former FFA members making an impact in agriculture and beyond.
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.