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
The specific provision in the CO₂ storage law allowed the North Dakota Industrial Commission (NDIC) to authorize carbon storage projects to proceed even if they lacked unanimous consent from all affected landowners.
American Farm Bureau Federation (AFBF) economist Danny Munch joined us on Thursday’s Market Day Report to break down the scope of the U.S. Christmas Tree industry and what growers are up against.
Rising beef supplies and lower cattle prices, weaker hog markets, and softening dairy prices will shape producer margins heading into 2026.
Outdated reporting thresholds reduce cash-market visibility and increase the urgency of comprehensive Mandatory Price Reporting reform.
Ag Secretary Brooke Rollins signed six MAHA waivers for SNAP in Hawaii, Missouri, North Dakota, South Carolina, Virginia and Tennessee.

LATEST STORIES BY THIS AUTHOR:

USDA flash corn sales, Cattle on Feed and Inventory reports, and beef packer antitrust concerns dominate January agricultural market news.
U.S. Secretary of Agriculture Brooke Rollins said permanent access to the higher ethanol blend would provide farmers with much-needed certainty while supporting domestic crop demand.
Food prices increased in December, but not as much as expected, according to the latest Consumer Price Index from the U.S. Bureau of Labor and Statistics.
Lewis Williamson with HTS Commodities joined us to provide analysis on the January WASDE report and expectations for grain markets going forward.
Market reaction was bearish for corn and soybeans, with analysts noting that abundant supplies amid tepid demand could keep price pressure on agricultural commodities.
The Farm Bureau’s honor highlights the important role farm dogs play on operations across the country, serving as dependable workers and trusted companions.
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.