Klobuchar, Luján, Slotkin, Heinrich, Colleagues Urge USDA to Address New World Screwworm Outbreak

WASHINGTON – Senator Amy Klobuchar (D-MN), Ranking Member of the Senate Committee on Agriculture, Nutrition, and Forestry, and Senators Ben Ray Luján (D-NM), Elissa Slotkin (D-MI), and Martin Heinrich (D-NM) are leading 17 of their colleagues in calling on the U.S. Department of Agriculture to take further immediate action to contain and respond to the outbreak of New World Screwworm (NWS) in the United States.

“We write with great concern regarding the current outbreak of New World Screwworm (NWS) within the United States and the growing threat this pest poses to livestock producers, farm workers, companion animals, wildlife, and rural economies...

University of California - What Is Screwworm, and What Is the Outlook for the Outbreak?

The New World screwworm lays its eggs in open wounds and burrows into skin. While human infections are rare, the insect poses an existential threat to cattle farming and dairy production. And it has returned to the United States.

While the U.S. Department of Agriculture officially declared the parasite eradicated from the country in 1966, several notable outbreaks and incursions have occurred since then. One of those is happening now.

On Wednesday, the USDA confirmed a case in South Texas. It could decimate that state's...

Ben Ray Luján - Luján Presses Agriculture Secretary Rollins on New World Screwworm

Today [June 10, 2026], U.S. Senator Ben Ray Luján (D-N.M.), a member of the Senate Committee on Agriculture, Nutrition, and Forestry, pressed Secretary of Agriculture Brooke Rollins on the New World screwworm that has now been detected in Lea County, New Mexico. At a Senate Agriculture Committee hearing, Senator Luján questioned Secretary Rollins on the impacts of staffing cuts on the response to the spread, the federal government’s response, and USDA’s commitment to prioritizing impacted states...

FDA Issues Emergency Use Authorization for Generic OTC Drug to Treat NWS in Dogs and Cats

The U.S. Food and Drug Administration today issued an Emergency Use Authorization (EUA) for generic Nitenpyram Tablets (nitenpyram) for the treatment of New World screwworm (NWS) infestations (myiasis) in dogs, puppies, cats, and kittens that weigh at least two pounds and are at least four weeks old. This is the first generic animal drug authorized for use against NWS.

“The U.S. government is moving aggressively to contain and eliminate New World screwworm,” said U.S. Health and Human Services Secretary Robert F. Kennedy, Jr. “Today’s authorization is the latest HHS action to strengthen our response. It puts an affordable, fast-acting treatment in the hands of pet owners...

FAO Calls for Stronger Prevention and Global Action as Transboundary Animal Diseases Spread

Countries around the world are facing a growing threat from transboundary animal diseases (TADs), including New World Screwworm, African Swine Fever, Avian Influenza, Foot-and-Mouth Disease, and Peste des Petits Ruminants, as well as other emerging zoonotic threats such as Andes hantavirus, Ebola, and Nipah.  As diseases and pests move more rapidly across borders, countries are facing increasing pressure to strengthen prevention, preparedness and response systems.

The stakes are high. Livestock sectors support more than one billion livelihoods and contribute trillions of dollars in economic value each year. Protecting animal health is therefore critical not...

NMPF - Dairy Farmers Urge Action on Labor, Other Issues at Congressional Fly-in

More than 80 NMPF board members and young dairy farmers met with about 100 congressional offices today in the organization's annual fly-in, advocating on behalf of dairy on issues ranging from agricultural labor to the recent return of New World screwworm to the United States.

The fly-in came after NMPF's June board meeting on Tuesday, which was highlighted by remarks from Deputy Secretary of Agriculture Stephen Vaden and Ambassador Julie Callahan providing perspective on the agriculture economy and trade landscape.

"We know what we need...

Congressman Biggs Leads Letter to USDA to Protect Arizonans Against New World Screwworm

This week, Congressman Andy Biggs (AZ-05) led a letter to U.S. Secretary of Agriculture Brooke Rollins, expressing support for her department’s response to the New World screwworm and highlighting Arizona’s unique ability to support long-term prevention, surveillance, and response efforts.

Following USDA's announcement of the first confirmed New World screwworm detection on Wednesday, June 3, four additional cases have been confirmed in New Mexico and Texas. These revelations have caused great concern among Americans, who fear an outbreak would threaten cattle, sheep, goats, horses, wildlife...

Georgia Expands Animal Entry Requirements Following Sixth New World Screwworm Detection in the US

Today, Georgia Agriculture Commissioner Tyler J Harper announced that the Georgia Department of Agriculture (GDA) will immediately implement enhanced interstate animal movement requirements for all warm-blooded animals entering Georgia from the entire state of Texas and 4 New Mexico counties following recent detections of New World Screwworm (NWS) in Texas and New Mexico. These proactive measures are intended to protect Georgia’s agricultural industry and animal health and may be updated as new information becomes available.

“In light of additional NWS detections, we are implementing additional...

Missouri Response to New World Screwworm Detection in US

The United States Department of Agriculture Animal and Plant Health Inspection Service (USDA-APHIS) has confirmed the presence of New World Screwworm (NWS) in the United States. On June 3, 2026, USDA confirmed NWS in a 3-week-old calf in Zavala County, Texas.

NWS is a serious pest that affects livestock, pets, wildlife and less commonly, people and birds. NWS larvae burrow into the flesh of living animals, causing serious damage to livestock and economic losses to producers.

The Texas case is the first detection of NWS in the U.S...

New World Screwworm in the US - What We Know So Far

The New World screwworm (NWS), a flesh-eating parasitic fly whose larvae feed on living tissue, has re-emerged as a major animal-health threat in the Americas after spreading northward through Central America and Mexico.

Federal and state authorities have expanded surveillance, quarantines, and sterile-fly releases in an effort to prevent the pest from becoming re-established in the country.

Expana is closely tracking the situation—see below for related coverage and an updated factsheet with the latest developments...

NCBA Responds to USDA Detection of Screwworm in the United States

Today [June 3, 2026], National Cattlemen’s Beef Association (NCBA) CEO Colin Woodall responded to the announcement from the U.S. Department of Agriculture (USDA) that one case of New World Screwworm has been detected in a calf in South Texas:

“NCBA and our state partner organizations have been working for more than a year to combat the incursion of the New World Screwworm, and we are doing everything possible to protect the interests of American cattle producers. We appreciate USDA and other agencies for working rapidly to bolster critical resources...

Governor Abbott Activates Texas State Emergency Operations Center For New World Screwworm Response

Governor Greg Abbott today directed the Texas Division of Emergency Management (TDEM) to activate the Texas State Emergency Operations Center (SOC) to Level II (Escalated Response) to support the state’s New World Screwworm response.

“I have activated the full use of all state resources to respond to the New World Screwworm threat,” said Governor Abbott. “The protection of our ranchers, livestock producers, deer breeders, and the Texas economy from this pest is a top priority. We have eradicated this pest before, and we will do it again...

Trump Administration Announces John Bellinger as Senior Advisor New World Screwworm Preparedness

Today U.S. Secretary of Agriculture Brooke L. Rollins announced President Donald J. Trump has appointed John Bellinger as the new Senior Advisor for New World Screwworm Preparedness. In this role, Bellinger will integrate into USDA’s team to help further drive its robust effort to explore all available technologies to combat the New World Screwworm.

“I want to thank John for joining our team as USDA transitions to the next phase of fighting and eradicating this pest from our borders, as we did nearly sixty years ago, yet it came back due to Biden’s failed open border policies,” said Secretary Rollins...

USDA Confirms Two More New World Screwworm Cases in Texas as Containment Efforts Intensify

Today, the US Department of Agriculture confirmed two additional cases of New World screwworm (NWS) in Texas, raising fresh concern over the re-emergence of the destructive livestock pest as federal and state authorities expand containment and eradication efforts.

The cases were identified in a calf in La Salle County and a dog in Andrews County, with officials saying epidemiological investigations are ongoing. The dog is believed to have recently traveled from Mexico, where the parasite remains present.

The findings follow two earlier detections in the...

Animal Health Officials Respond to Second Detection of New World Screwworm in the United States

The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed a second detection of New World screwworm (NWS) [on June 5, 2026] after testing a number of suspect cases. The confirmed case was found in a one-month-old calf in Zavala County, Texas, approximately 5.6 miles away from the first confirmed detection. APHIS and our Texas partners continue to collect and test other samples from the surrounding area which have come back negative.

NWS is a serious pest that threatens livestock, pets, wildlife, and, in rare cases, people. The larvae burrow into the living tissue of animals, causing severe wounds, animal suffering, and significant economic losses...

Tennessee, Florida Tighten Safeguards After Texas Screwworm Cases

Tennessee and Florida agriculture officials have ramped up animal health safeguards following the confirmation of New World screwworm (NWS) in Texas, as states move to prevent the flesh-eating parasite from spreading into major livestock-producing regions.

The Tennessee Department of Agriculture said it has increased surveillance, producer outreach, and animal movement monitoring. Officials said no cases have been detected in Tennessee, but urged livestock owners and veterinarians to remain vigilant...

Zoetis Shares Resources and Tips for New World Screwworm Response and Management

With the recent New World screwworm (NWS) incursion in Texas, it's important to be aware of your herd's risk level and be vigilant in checking your livestock for signs of an infestation.

'We understand that livestock producers and animal caretakers are facing a stressful and uncertain time as New World screwworm threatens what they've worked so hard to build. At Zoetis, we stand with you because protecting your animals means protecting your livelihood, your families, and your way of life. Planning ahead is critical, and we're committed to being a resource and a partner,' said Kristin Kasselman...

Veterinarians: A Key Line of Defense Against New World Screwworm

Following the recent detection of New World screwworm (NWS) in Texas, the American Veterinary Medical Association (AVMA) is empowering one of the most important tools in preventing, identifying, treating and containing this parasite: the veterinarian.

Frontline practitioners across the country are already actively engaged through monitoring and diagnosing potential cases, treating susceptible animals, reporting to state and federal authorities, and educating their clients. The AVMA has mobilized and continues to build on a centralized hub of clinical resources to...

Meat Institute Issues Statement on Confirmation of New World Screwworm in Texas

The Meat Institute today released the following statement regarding the confirmation of a case of New World Screwworm in Texas:

“American consumers need to know that New World Screwworm is not a food safety concern. Meat and poultry products are safe to consume,” said Meat Institute President and CEO Julie Anna Potts. “Our first priority is to protect the health of the nation’s livestock. We are encouraging members of the Meat Institute to work with local, state and federal authorities to detect and eradicate the pest.

“USDA has been working hard to prevent and respond to New World Screwworm. For a year now they have improved...

CME Feeder Cattle Futures Surge After Early Slide on Screwworm Report

Feeder cattle futures on the Chicago Mercantile Exchange (CME) opened sharply lower Thursday as traders reacted to news of a confirmed New World screwworm (NWS) case in a calf in Zavala County, Texas.

Contracts later pared losses and moved sharply higher into positive territory following two consecutive days of steep declines linked to NWS concerns.

Market participants cited ongoing uncertainty about US cattle supplies and movement restrictions following the reported case...

Industry Response Following New World Screwworm Detection in Texas

On June 3, 2026, the US Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) confirmed a case of New World screwworm (NWS) in a 3-week-old calf in Zavala County, Texas, the first confirmed US case in decades, prompting responses from government and industry groups.

The larvae were detected in the calf's umbilical area. As of now, no additional cases have been reported.

NWS is a destructive pest that can infest livestock, pets, wildlife, and, in rare cases, humans. The larvae feed on living tissue, causing...

USDA Confirms Presence of New World Screwworm in the United States

The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) confirmed the detection of a New World screwworm (NWS) in a bovine in Zavala County, Texas. NWS is a serious pest that affects livestock, pets, wildlife, and less commonly, people and birds. NWS larvae (maggots) burrow into the flesh of living animals, causing serious damage to livestock and economic losses. 

The affected animal is a 3-week-old calf and larvae were identified in its umbilical area. To date, there have been no further detections.

“All models showed New World Screwworm entering the country in 2025; however, thanks to the hard work across the entire...

Cattle Futures Extend Losses on Screwworm Concerns as Grain Markets Slide

Chicago Mercantile Exchange (CME) live and feeder cattle futures remained under heavy pressure Wednesday after sharp losses in the previous session, as traders weighed reports of a potential New World screwworm (NWS) case in Texas.

Samples from a suspected NWS infestation at a cattle operation in La Pryor, Texas, have been sent to a federal laboratory in Iowa for testing, Texas Representative Don McLaughlin told Reuters. The US Department of Agriculture (USDA) has not confirmed a Texas case, though the agency on Tuesday reported an NWS detection about 25 miles south of the Texas border.

Feeder cattle futures led the selloff, with the August contract breaking below key support to a multi-month low...

NMPF, FARM Prime Producers for Screwworm

More than 1,200 cases of New World screwworm were reported in Mexico during the month of May, with the latest confirmed case approximately 31 miles from the U.S.–Mexico border. Experts believe that a U.S. outbreak may be imminent, making it a top priority for NMPF and the National Dairy FARM Program that it administers.

The nature of the threat, which creates severe wounds that can lead to death in cattle, makes producer surveillance a key strategy to preventing and treating cases. The Food and Drug Administration has a growing list of medications which...

CBP Laredo Field Office Warns Traveling Public About the New World Screwworm Threat

U.S. Customs and Border Protection, Laredo Field Office, is warning the South Texas traveling public about the threat of the New World Screwworm through a public awareness campaign.

CBP Laredo Field Office has developed an informational tearsheet in English and Spanish that advises about the threat of NWS and is distributing the tearsheet at the eight ports of entry from Brownsville to Del Rio, Texas that comprise the Laredo Field Office area of responsibility. CBP Laredo Field Office is amplifying this same message via Director, Field Operations...

TSCRA Attends Ribbon Cutting at Kerrville ARS Facility

Texas & Southwestern Cattle Raisers Association President Stephen Diebel today [May 27, 2026] attended the grand opening and 80^th anniversary of the Knipling-Bushland U.S. Livestock Insects Research Laboratory operated by the Agricultural Research Service (ARS).

Texas & Southwestern Cattle Raisers Association was well represented at the grand opening and communicated the association’s support of the valuable research conducted at the Kerrville facility focused on protecting livestock from pests, such as the New World screwworm.

“The Kerrville facility has a rich history in the New World screwworm fight,” Diebel said. “The groundbreaking work that took place 70 years ago continues to serve as an investment in pest management for our livestock industries.”

NIFA Invests $990K in Response to New World Screwworm Threat and Bovine Theilerios

NIFA (the National Institute of Food and Agriculture) has funded — through the Rapid Response to Emerging and Re-emerging Pest and Diseases Events Across Food and Agriculture Systems program — one project that addresses the threat of New World Screwworm and one project that addresses the spread of bovine theileriosis. Rapid responses to pest and disease events are critical to maintaining a secure, accessible, safe, nutritious, affordable and abundant food supply. Innovative Extension and applied research efforts are needed to alleviate the impacts pest and disease events...

USDA Opens State-of-the-Art Livestock Insects Research Laboratory to Combat Livestock Pests

The United States Department of Agriculture’s (USDA) Agricultural Research Service (ARS) opened the Knipling-Bushland U.S. Livestock Insects Research Laboratory, a state-of-the-art laboratory facility today that will provide the U.S. cattle industry with innovative tools and advanced technologies to manage and eliminate the invasive fly and tick pests that threaten the U.S. cattle industry.

“The Trump Administration has been committed to eradicating pests that could harm our American livestock since the President has been sworn in. The brand new Knipling-Bushland U.S. Livestock...

FDA Issues Emergency Use Authorization for Over-the-Counter Injectable Drug for New World Screwworm 

The U.S. Food and Drug Administration today issued an Emergency Use Authorization (EUA) for Dectomax/Dectomax-CA1 (doramectin injection) injectable solution for the prevention and treatment of New World screwworm (NWS) infestations (myiasis) in dairy cattle (lactating dairy cows, dry dairy cows, and replacement dairy heifers 20 months of age and older), except for calves that will be processed for veal. The EUA also authorizes Dectomax/Dectomax-CA1 for the prevention of NWS myiasis in swine, horses at least one year old, sheep except for...

Imported Beef Threatens Fragile Recovery for America’s Ranchers

President Trump is considering issuing an executive order that would allow more beef imports at lower tariff rates, but increasing imports could have long-term impacts and fails to address the underlying issues facing America’s ranchers. American Farm Bureau Federation economists analyzed the issue in the latest Market Intel.

“The United States cattle industry is navigating one of the tightest supply environments in decades,” the Market Intel states. “The domestic cattle herd remains near multi-decade lows following years of drought, elevated feed and operating costs, herd liquidation and ongoing disruptions tied...

NPPC Urges EPA to Approve NovoFly for New World Screwworm Control

In comments to the U.S. Environmental Protection Agency, the National Pork Producers Council asked to give “full and timely consideration” for approval of new technology to help prevent New World screwworm.

NWS is a flesh-eating parasite from female flies that lay eggs in wounds on warm-blooded animals. Animals that recently have given birth, suffered an injury or had a surgical procedure, such as tail docking or branding, are most vulnerable.

The USDA's Agricultural Research Service recently applied to register NovoFly – a technology incorporating a genetically engineered female...

ANALYSIS: New World Screwworm Cases Extend Into Northern Mexico

According to SENASICA data compiled by Expana, the New World Screwworm situation in Mexico continues to show a gradual northward movement, with recent cases reaching as close as roughly 140 to 160 miles from the US border. In Nuevo León, the first case was reported in early April, initially detected in a canine host, and has since increased to 21 active cases. Coahuila followed toward the end of April, with its first confirmed case now reaching 4 active cases. These developments come nearly one year after feeder cattle exports to the US were suspended in May, with a brief reopening attempt in July later paused, keeping trade restrictions in place as cases continue to appear in northern states.

Com. Miller Applauds Expanded New World Screwworm Defense Operations Along Texas-Mexico Border

AUSTIN - Texas Agriculture Commissioner Sid Miller today praised the U.S. Department of Agriculture's Animal and Plant Health Inspection Service (USDA APHIS) for expanding New World screwworm sterile fly dispersal operations farther north along the Texas-Mexico border, calling it a critical step to protect Texas livestock, wildlife, pets, and the people who care for them.

The expanded dispersal zone now reaches as far north as Maverick County near Eagle Pass, strengthening the biological barrier against the deadly, flesh-eating parasite...

Commissioner Wilton Simpson Issues Emergency Rule to Further Protect Florida From Threat of NWS

Today, as New World Screwworm detections are now within 125 miles of the U.S. border, Florida Commissioner of Agriculture Wilton Simpson took aggressive action to protect Florida from the threat of the New World Screwworm (NWS) by issuing an emergency rule placing temporary restrictions on the importation of animals into Florida from high-risk counties in Texas. These temporary restrictions require all animals imported into Florida originating from a high-risk U.S. county to undergo increased veterinary screenings and treatment, if necessary.

“Today we are taking...

USDA Highlights EPA Emergency Exemption of Product To Treat New World Screwworm

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) recently submitted an Emergency Exemption request to the U.S. Environmental Protection Agency (EPA) to allow the importation and use of Elanco’s product, Tanidil, a topical powder used to treat or prevent New World screwworm (NWS). Today, EPA granted USDA’s request and issued the Emergency Exemption under Section 18 of the Federal Insecticide, Fungicide, and Rodenticide Act. 

This authorization will support APHIS and State animal health officials in preparing for possible cases of NWS in livestock and...

USDA and US Army Corps of Engineers Break Ground on New Texas Sterile Fly Production Facility

Groundbreaking Marks Next Major Milestone in Strengthening U.S. New World Screwworm Preparedness

Today, U.S. Secretary of Agriculture Brooke L. Rollins and Lieutenant General William H. “Butch” Graham, U.S. Army Corps of Engineers (USACE) commanding general, led the groundbreaking for the new sterile fly production facility at Moore Air Base in Edinburg, Texas. USDA is partnering with USACE to construct this facility, which is a cornerstone of Secretary Rollins’ five-pronged strategy (PDF, 1005 KB) to combat New World Screwworm (NWS)...

Rep. Vasquez Presses USDA for Answers on New World Screwworm Preparedness as Summer Outbreak Season 

On April 13, 2026, U.S. Representative Gabe Vasquez (NM-02) sent a letter to Agriculture Secretary Brooke Rollins demanding answers on the Administration’s preparedness strategy for a New World Screwworm (NWS) outbreak as the warmer months approach. The letter also requested an update on the status of the sterile fly production and dispersal facilities in Texas. He was...

USDA Releases Updated New World Screwworm Response Playbook

The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) is sharing the updated New World Screwworm (NWS) Response Playbook, a comprehensive guide designed to support coordinated, science-based action should NWS be detected in the United States.

“USDA continues to execute Secretary Rollins’ five-pronged plan to keep NWS out of the United States,” said USDA Under Secretary for Marketing and Regulatory Programs, Dudley Hoskins. “While we are aggressively safeguarding American agriculture and working with Mexico to prevent further northward spread, we must also ensure that our domestic response plans are ready for...

ANALYSIS: NWSW Cases in Mexico Continue to Increase

According to SENASICA, New World Screwworm cases in Mexico continue to increase, reaching 1,139 active cases during the week. This represents an increase of approximately 54% on a month-over-month basis...

Commissioner Miller Applauds FDA Emergency Authorization of New Tool to Combat New World Screwworm

Texas Agriculture Commissioner Sid Miller today applauded the U.S. Food and Drug Administration’s decision to issue an Emergency Use Authorization for F10 Antiseptic Wound Spray with Insecticide, a topical treatment designed to help prevent and treat infestations of the devastating New World screwworm.

“This is exactly the kind of proactive action we need from our federal partners as we continue to respond to the New World screwworm threat,” Commissioner Miller said. “This is one of the most destructive parasites livestock producers can face. If it ever gains a foothold in the United States again...

FDA Issues Emergency Use Authorization for Topical Spray to Prevent & Treat NWS in Multiple Species

Today, the U.S. Food and Drug Administration issued an Emergency Use Authorization (EUA) for F10 Antiseptic Wound Spray with Insecticide (benzalkonium chloride, polyhexanide, and cypermethrin topical solution) for the prevention and treatment of New World screwworm (NWS) infestations (myiasis).

The FDA has concluded that based on the scientific evidence available, it is reasonable to believe that F10 Antiseptic Wound Spray with Insecticide may be effective in the prevention and treatment of NWS myiasis in cattle, horses, minor species of hoof stock (e.g., sheep, goats, deer), raptors and other wild birds...

Cattle Raisers Applaud Construction Contract for Texas Based Sterile Fly Production Facility

Texas & Southwestern Cattle Raisers Association President Carl Ray Polk Jr. released the following statement after the U.S. Department of Agriculture (USDA) and U.S. Army Corps of Engineers (USACE) today announced a construction contract with Mortenson Construction to build a new sterile fly production facility at Moore Air Base in Edinburg, Texas:

“Texas & Southwestern Cattle Raisers Association applauds the swift action taken by Secretary Brooke Rollins and her team in coordination with the U.S. Army Corps of Engineers. Today’s announcement in awarding the contract for a sterile fly production facility in South Texas marks an important step as we...

USDA and US Army Corps of Engineers Advance NWS Preparedness with New Texas Sterile Fly Facility 

The U.S. Department of Agriculture (USDA) and U.S. Army Corps of Engineers (USACE) today announced a construction contract with Mortenson Construction to build a new sterile fly production facility at Moore Air Base in Edinburg, Texas. This facility is a key component in Secretary Rollins’ sweeping 5-prong strategy (PDF, 1005 KB) to fight New World Screwworm (NWS), as it will expand USDA’s domestic response capacity, bolstering protection for U.S. livestock, wildlife, and public health.

USACE is partnering with USDA and will provide oversight for the contract, design, engineering, and construction of the facility...

AFBF Urges Continued Science-Based Response to New World Screwworm

As New World screwworm continues to pose a threat to the U.S. cattle herd and farm economy, American Farm Bureau President Zippy Duvall sent a letter to USDA Secretary Brooke Rollins urging a continued science-based approach to addressing the threat. The letter urges USDA to keep the southern U.S. border closed to cattle imports until it’s clear Mexico is capable of controlling the pest.

The letter states, “Under your leadership, USDA is delivering on its promise to fight the New World screwworm by completing the sterile fly distribution facility in South Texas, leveraging USDA’s ability to connect entrepreneurs...

US Response Ramps Up as New World Screwworm Nears Texas Border

Texas and the U.S. Department of Agriculture (USDA) are stepping up efforts to keep New World screwworm (NWS) out of the country after the flesh-eating parasite was recently detected in the Mexican border state of Tamaulipas and at a Florida quarantine facility.

Texas Gov. Greg Abbott issued a disaster declaration marshaling all available government resources to strengthen the state's NWS response.

"Although the New World screwworm fly is not yet present in Texas or the U.S., it's northward spread from Mexico toward the U.S. southern border poses a serious threat to Texas' livestock industry and wildlife," Abbott said in a January 29 press...

Congressman Don Davis Co-Leads SAFE CATTLE Act to Protect Agriculture and Rural Communities

U.S. Representatives Don Davis (NC-01), Ronny Jackson (TX-13), Harriet Hageman (WY-At Large), and Darren Soto (FL-10) introduced H.R. 7466, the Safeguarding America’s Food Economy and Controlling Agricultural Threats to Livestock and Enterprises Act, or SAFE CATTLE Act. This bill will establish a Memorandum of Understanding between the United States Department of Agriculture (USDA) and the Department of the Interior (DOI) to coordinate activities to prevent, control, and eradicate New World screwworm in wildlife species on federal lands.

"Our producers and ranchers need proactive monitoring and interagency coordination to stop the screwworm before it threatens...

Weekly Address: More Imports on the Way

One of the most common questions from journalists and reporters today is: Why are beef prices so high? President Trump provided his answer to this question in his Feb. 6, 2026, proclamation titled, “Ensuring Affordable Beef for the American Consumer.” The proclamation increases the in-quota quantity of lean beef trimmings that can be imported from Argentina by an additional 80,000 metric tons during the 2026 calendar year, which is in addition to the 20,000 metric ton annual in-quota quantity limit already applicable to Argentina.

The reasons cited by the president for his decision to increase Argentinian beef imports include the widespread drought that occurred in 2022, wildfires that have disrupted...

Rep. Jackson Introduces Bill to Protect US Livestock Industry from New World Screwworm

Yesterday, Congressman Ronny Jackson (TX-13) introduced the Safeguarding America’s Food Economy and Controlling Agricultural Threats to Livestock and Enterprises Act or the SAFE CATTLE Act. This bill will establish a Memorandum of Understanding between the United States Department of Agriculture (USDA) and the Department of the Interior (DOI) to carry out, and coordinate on, activities to prevent, control, and eradicate New World screwworm in wildlife species on federal lands. Representatives Don Davis (D-NC), Harriet Hageman (R-WY), and Darren Soto (D-FL) are co-leading this bill in the House...

USDA Announces Completion of Sterile Fly Dispersal Facility in Texas

Today [February 9, 2026] at Moore Air Base, U.S. Secretary of Agriculture Brooke L. Rollins and Governor of Texas Greg Abbott celebrated a significant achievement in the fight against New World Screwworm (NWS) with the completion of a U.S.-based sterile fly dispersal facility in Edinburg, Texas. This facility expands USDA’s ability to disperse sterile flies along the border and into the United States, if necessary.

"The Trump Administration continues to bring the full force of the federal government to fight New World Screwworm,” said Secretary Brooke Rollins. “This sterile fly dispersal facility was a high priority project, and our team delivered it in record time...

CattleFax Outlook Signals Cattle Cycle Turning as Strong Demand Meets Tight Supplies in 2026

The popular CattleFax Outlook Seminar, held as part of CattleCon 2026 in Nashville, Tennessee, shared expert market and weather analysis today.

“The U.S. cattle and beef industry enters 2026 with strong but volatile market conditions, as historically tight cattle supplies, record-setting beef demand, and elevated policy and weather uncertainty continue to support prices, even as markets appear to near cyclical highs. Tight inventories and exceptional demand remain the dominant forces shaping the market; however, producer demographics, high input costs, and policy uncertainty point to a...

FDA Issues Emergency Use Authorization for OTC Injectable Drug to Prevent New World Screwworm in Cattle

Today the U.S. Food and Drug Administration issued an Emergency Use Authorization (EUA) for Ivomec (ivermectin) injectable solution against New World screwworm (NWS). The agency has concluded that based on the scientific evidence available, it is reasonable to believe that Ivomec may be effective for the prevention of infestations caused by NWS larvae (myiasis) in cattle when administered within 24 hours of birth, at the time of castration, or when a wound appears, and the known and potential benefits of the product outweigh its...

NCBA Releases 2026 Policy Priorities at CattleCon

The National Cattlemen’s Beef Association (NCBA) today announced its 2026 policy priorities following approval by the organization’s Executive Committee at CattleCon 2026. NCBA’s focus centers on policies that directly impact producer profitability, including reducing regulatory costs, defending free markets, expanding trade opportunities, and maintaining strong beef demand.

“NCBA focused on practical, workable solutions that produced meaningful policy wins in 2025,” said NCBA President-Elect Gene Copenhaver, a Virginia cattle producer. “NCBA’s efforts resulted in key tax and regulatory improvements, including expanded estate tax exemptions, a new Waters of the U.S. rules, and the...

USDA Shifts Sterile Fly Dispersal Efforts to Defend US Border

The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) is announcing a shift in its 100 million per week sterile fly dispersal efforts to stop the northern spread of New World screwworm (NWS). USDA will reallocate aircraft and sterile insects to reinforce coverage along the U.S.-Mexico border. The new dispersal area, or polygon, will include operations about 50 miles into Texas, along the U.S. border with the state of Tamaulipas, Mexico. Mass production and targeted dispersal of sterile insects are critical components of an effective strategy to fight NWS...

Expana's Weekly Top 10: Stories Making Waves Across Global Markets

Throughout the week, Expana’s team of dedicated journalists connects the industry with the “how” behind market dynamics, providing a comprehensive space for the market-moving stories shaping global headlines.

With so much information to filter through, Expana is connecting the dots with its weekly roundup of the top ten stories making waves — in no particular order.

10. USDA Launches New World Screwworm Grand Challenge

The USDA announced the launch of the New World Screwworm (NWS) Grand Challenge following reports that the flesh-eating parasitic...

USDA Announces New World Screwworm Grand Challenge

Today, U.S. Secretary of Agriculture Brooke L. Rollins announced the launch of the New World Screwworm (NWS) Grand Challenge. This funding opportunity marks a pivotal step in USDA’s comprehensive strategy to combat NWS and prevent its northward spread.

“This is a strategic investment in America’s farmers and ranchers and is an important action to ensure the safety and future success of our food supply, which is essential to our national security,” said Secretary Brooke Rollins. “These are the kinds of innovations that will help us stay ahead of this pest and protect our...

USDA Welcomes Nevada into State Meat and Poultry Inspection Program

U.S. Secretary of Agriculture Brooke L. Rollins today announced that Nevada has met USDA’s rigorous "at least equal to" food safety standard and will be joining the State Meat and Poultry Inspection (MPI) Program. Nevada’s participation expands local inspection capacity, food safety oversight, and boosts market access for small and very small processors. This vital partnership builds on USDA’s recently released suite of actions to strengthen the American beef industry.

“We are strengthening the backbone of America’s food system by forging true partnerships with states and empowering local producers,” said Secretary Rollins. “Today’s action builds on our commitment to deliver clear, accountable food safety standards and support small...

USDA Update on Coordinated Federal Response To Protect United States From New World Screwworm

The U.S. Department of Agriculture (USDA), in close collaboration with our interagency partners and Mexico’s El Servicio Nacional de Sanidad, Inocuidad y Calidad Agroalimentaria (SENASICA), has made considerable progress in reducing the overall threat of New World screwworm (NWS) to U.S. agriculture and mitigating northern movement of the fly within Mexico. As of November 21, NWS has not been detected in any animals or traps in the United States, and the vast majority of cases within Mexico remain concentrated in southern parts of the country. The Trump Administration remains steadfast in its resolve to safeguard America’s rural economy...

CME Feeder Cattle Plunge Further, Hit Expanded Daily Limits

The cattle complex on the Chicago Mercantile Exchange is deepening its steep losses in early Monday trading, extending Friday’s sharp sell-off that saw all but the nearby live cattle contract end at limit-down.

As of 9:50 a.m. ET, live cattle futures are sliding between $4.00 and $7.70, while most feeder contracts are hitting the expanded daily limit.

Both live ($10.75) and feeder cattle ($13.75) futures will trade under expanded limits today.

The recent downturn likely reflects long liquidation across both live and feeder futures markets as traders digest a range of developments, including the Trump administration’s plan to increase imports...

AFBF Cautions Against Disrupting Fragile US Beef Supply

American Farm Bureau Federation President Zippy Duvall commented today on the future of America’s beef supply.

“Farm families are no different from other American families. We feel the impact of higher grocery costs, but don’t get to set the prices. Meanwhile, farmers are suffering through an economic storm – expenses remain high, and cattle farms have been decimated by years of low prices, drought and the threat of the New World screwworm. They are just beginning to experience a fragile recovery...

President Trump Undercuts America’s Cattle Producers

In a misguided effort to lower the price of beef in grocery stores, President Trump said he plans to increase the volume of beef being imported from Argentina. Efforts to manipulate markets only risk damaging the livelihoods of American cattlemen and women, while doing little to impact the price consumers are paying at the grocery store.

“The National Cattlemen’s Beef Association and its members cannot stand behind the President while he undercuts the future of family farmers and ranchers by importing Argentinian beef in an attempt to influence prices,” said NCBA CEO Colin Woodall...

USDA Shares New World Screwworm Response Playbook

The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) is announcing the availability of the New World Screwworm (NWS) Response Playbook. The playbook outlines key approaches, resources, and tools to implement animal health response activities in the event of a U.S. detection of NWS. 

“USDA continues to execute our five-pronged plan to keep NWS out of the United States,” said U.S. Secretary of Agriculture Brooke L. Rollins. “While we continue to aggressively protect the U.S. border and are working with Mexico to stop the pest from continuing to spread further north, we also have to ensure our domestic response plans are ready to activate if needed...

FDA Conditionally Approves First Drug for Prevention and Treatment of New World Screwworm 

Today, the U.S. Food and Drug Administration conditionally approved Dectomax-CA1 (doramectin injection) injectable solution for the prevention and treatment of New World screwworm larval infestations, and prevention of NWS reinfestation for 21 days. Dectomax-CA1 is conditionally approved for use only in cattle. 

“We understand the urgency with which America’s farmers and ranchers are asking for tools to fight New World screwworm,” said FDA Commissioner Marty Makary, M.D., M.P.H. “Today’s conditional approval – the first in the U.S. for NWS – shows our dedication to rapidly advancing important animal medicines when they are needed most. We...