Texas

Mystery Respiratory Virus in Texas Panhandle Feedlots Is Fake News

Tue, 17 Mar 2026 16:10:35 GMT

Tuesday morning, false information about a mystery respiratory virus in Texas Panhandle feedlots was circulating online. According to the Texas Animal Health Commission (TAHC) and Texas Cattle Feeders Association (TCFA), these claims are false.

Dr. Bud Dinges, TAHC executive director and Texas state veterinarian, says, “Texas animal health officials have confirmed with Amarillo region staff and partners at USDA Animal Plant and Health Inspection, Texas A&M Veterinary Medical Diagnostic Laboratory and Texas Cattle Feeders Association that no reports of cattle with an ‘unknown’ respiratory virus in the Texas Panhandle have been received and no regulatory action is being taken at this time.”

National Cattlemen’s Beef Association CEO Colin Woodall addressed the rumors issuing a strongly worded release:

“Spreading unverified information like this is not only irresponsible, it is harmful to cattle producers, the beef supply chain and consumer confidence in a safe and wholesome product. Our industry depends on transparency, science-based animal health protocols, and strong collaboration with state and federal animal health authorities. We encourage everyone — producers, media and the public — to rely on credible sources and verified information. NCBA and state affiliate partners will continue working closely with animal health officials to monitor any legitimate concerns and ensure the continued health of the U.S. cattle herd.”

How Will U.S. Producers Maintain Business when New World Screwworm Invades?

Wed, 11 Mar 2026 19:59:32 GMT

With animal disease, prevention and preparation beat panic. Since New World screwworm (NWS) was last eradicated from the U.S. in the 1960s, the tools and infrastructure to deal with foreign animal disease have dramatically changed.

Dr. Justin Smith, Kansas animal health commissioner and state veterinarian, during the recent Kansas State University Cattlemen’s Day gave an update on how Kansas and other states are preparing for NWS. The approach is designed to keep producers in business, keep cattle and products moving, and manage NWS in a way that protects both herds and markets.

He says the U.S. animal health officials along with USDA are planning a multistate, coordinated response that aims for consistency across state borders.

Smith summarizes the industry’s preparation to tackle NWS is like a three-legged stool. U.S. producers will be able to maintain business when NWS invades through surveillance, treatment and movement controls.

Surveillance: Eyes on Animals

The first leg of the stool is surveillance. He stresses early detection depends heavily on producers and veterinarians watching animals closely and reporting anything suspicious.

Smith emphasizes they would rather over investigate than miss a case.

“We want to make sure that we err on the side of having to say no on many occasions, versus saying, ‘Yep, this is what we got.’ Eyes on animals is going to be key.”

He was clear this should feel like partnership, not policing.

“They don’t want it to look like Big Brother coming over your shoulder,” he explains. “I hope we want to get this thing quickly.”

Smith explains that once a positive premises is identified, surveillance becomes structured around zones. The infested premises sit at the center, surrounded by an infested zone, an adjacent surveillance zone and a broader fly surveillance area.

The infested zone is 12.4 miles in radius from the infested premises. In this zone, there will be frequent on‑animal checks for wounds and larvae, plus enhanced monitoring in surrounding zones using fly traps and animal observation. The adjacent surveillance zone is another 12.4 miles radius and then there will be a fly surveillance area — an 124-mile radius from the infested premises.

Smith says movements out of the infested zone will require visual inspection for wounds and systemic treatment, including a treatment window of three to 14 days before movement plus a documented certificate of veterinary inspection.

He says the current Kansas response plan aligns with USDA’s playbook and neighboring states’ plans while taking into account specific needs of the Kansas livestock industry.

He stresses the playbook will continue to evolve, and state-by-state implementation may vary, but he says the “zone approach” will be utilized by all states.

Treatment: Limited Tools, Use Strategically

The second leg is treatment. Smith says that after decades without large domestic outbreaks, labeled options are limited.

From the fact that we haven’t had this new tool in our nation, in a large-spread outbreak since the 60s, we don’t have a lot of treatments out there that are labeled for this organism.”

To date, the Food and Drug Administration (FDA) has approved four products for large animals:

He cautions, “The goal is not to go out there and just habitually treat your animals just in case. We want to make sure that we’re utilizing these [products] responsibly. There’s not an unlimited supply out there, and so we want to make sure that it’s available for us when we do need it.”

On a positive premises, Smith says treatment will be mandatory and systematic.

“There will be a quarantine placed on that premises. We’re also going to require a certain level of treatment on that premises,” he explains.

There will be protocols for daily mortality disposal, so carcasses don’t become breeding sites.

“The last thing you want to do is bury an animal that has larvae and has the ability to advance.”

He says treatment is also tied to movement out of infested zones, with most animals needing prophylactic treatment before leaving.

Movement Controls: Targeted, Not Statewide Shutdowns

The third leg is movement control, designed to be precise rather than broad-brush. Smith stresses NWS is an infestation, not an infection , emphasizing it is not a systemic disease problem, but an infestation that still demands strong controls.

He says there will be movement restrictions if a premises falls into an infested region. To move animals out of that zone, there will be steps to follow but movement will not be completely shut down.

He explains some exceptions exist:

Animals moving directly to slaughter can go without pre‑movement treatment, but those animals have to be hanging on the rail within 72 hours.
Baby dairy calves must be treated but can move right away if treatment and navel care are documented.

He says Kansas is also coordinating with neighboring states to create “synergistic” rules, especially for cattle from higher‑risk states such as Texas. Cattle entering Kansas from recognized infested zones will face inspection, treatment requirements and at least 14 days in drylot containment on arrival.

NWS is Not a Food Safety Issue

Smith reassures producers and consumers that NWS is not a meat safety threat.

“This is not a food safety issue,” he says. “If an animal is presented to slaughter, it has a screwworm wound then it has the ability to be trimmed. That carcass will not be condemned. There are no restrictions on any inspected product for food safety reasons.”

Smith summarizes underpinning all three legs is a commitment to dynamic planning and continuity. He notes a revised USDA playbook is forthcoming and that “plans will be a little bit dynamic” as they learn more.

The core message for producers is clear: watch your cattle, report early, use treatments wisely and expect targeted movement controls — not blanket shutdowns — if NWS crosses the border.

USDA Announces Sterile Fly Production Facility Construction Contract

USDA and U.S. Army Corps of Engineers (USACE) announced March 9 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 U.S. Secretary of Agriculture Brooke Rollins’ sweeping 5-prong strategy to fight NWS. USACE is partnering with USDA and will provide oversight for the contract, design, engineering and construction of the facility.

“The Army Corps of Engineers is an essential partner in bringing this facility to life and further highlights the Trump Administration’s government-wide effort to fight the New World Screwworm threat in Mexico,” Rollins says. “The Army Corps is the best in the business and their engineering expertise and proven track record in delivering complex projects will help ensure we can build a modern, resilient facility that protects American agriculture from invasive pests for decades to come. This first-of-its-kind facility on U.S. soil will ensure we are not reliant on other countries for sterile flies.”

A sterile fly production facility is a specialized biosecure complex where NWS flies are raised and sterilized using irradiation and then released into targeted areas.

USDA currently produces about 100 million sterile flies per week at the COPEG facility in Panama and disperses them within and just north of affected areas in Mexico. In addition to the COPEG facility in Panama, USDA invested $21 million to support Mexico’s renovation of an existing fruit fly facility in Metapa , which will double NWS production capacity once complete.

With ongoing support from APHIS technical experts, Mexico anticipates sterile fly production will begin at this facility in summer 2026. The new facility at Moore Air Base will be the only U.S.-based sterile fly production facility and will work in tandem with facilities in Panama and Mexico to help eradicate the pest and protect American agriculture.

USDA and USACE will break ground on this new facility later this spring, after initial planning and development meetings with the new contractor. By November 2027, the production facility at Moore Air Base is expected to reach its initial goal of producing 100 million sterile flies per week. After that, construction will continue at the facility to increase production with the long-term goal of producing 300 million sterile flies per week.

CattleZen Calming Pheromone Available to Cattle Producers Facing Wildfires

Thu, 26 Feb 2026 14:18:35 GMT

In the wake of recent wildfires in Kansas, Texas and Oklahoma, many cattle producers are managing heightened cattle stress caused by relocation, environmental disruption and changes in routine. To help support cattle during this transition, Solvet will be providing CattleZen at no cost to producers impacted by the fires. Designated area veterinarians have CattleZen on hand to distribute as needed. To find your participating veterinarian or determine how to receive product, email Dr. Doug Shane, Solvet veterinary technical support, at douglas.shane@solvet-us.com .

“The unfortunate wildfire conditions create significant stress for cattle, which can cause lasting effects on cattle health,” Shane says. “CattleZen is designed to stimulate a natural calming response, helping support cattle and handler safety through stressful events such as this.”

Shane adds that the resilience of cattle producers during these events does not go unnoticed.

“We hope offering this product will help producers with one aspect during a challenging time. We also extend our sincere appreciation to the producers, veterinarians and first responders working tirelessly to protect livestock and livelihoods.”

Your Next Reads:
After the Fire: The Need for Feed, Fence and Prayers
Tips for Care Following Wildfire

After the Fire: The Need for Feed, Fence and Prayers

Mon, 23 Feb 2026 21:19:00 GMT

Wildfires plagued the Plains last week from southern Kansas into Oklahoma and Texas. Hundreds of thousands of acres of grass are now burned to sand.

The Ranger Road Fire, which started in Oklahoma and made its way into southern Kansas, to date has burned more than 283,000 acres and is 65% contained as of Monday morning, according to the Oklahoma Department of Agriculture, Food and Forestry .

The Oklahoma Forestry Services reports moderated fire weather over dormant fuels resulted in a downtick in wildfire activity over the weekend, allowing firefighters to improve the containment of recent large fires.

“Conditions also supported opportunity to execute burn plans for prescribed fires,” the report says. “If you engaged in prescribed burning, controlled burns or pile burns over the weekend, please ensure that fire perimeters are mopped up and secured ahead of increasing fire weather concerns Tuesday through the remainder of the week.”

Read more about how strong winds, above-average warmth and months of worsening dryness created a “perfect recipe”

for wildfires across the Southern Plains, scorching pasture and farmland — with little moisture relief in the forecast:

Why the Southern Plains Became a ‘Perfect Recipe’ for Wildfire

The wildfires have left a path of heartbreak and devastation. From the loss of livestock and homes, barns and shops to pastures and fence, the damage is hard to fathom.

Oklahoma Secretary of Agriculture Blayne Arthur visited Oklahoma producers impacted by the wildfires on Thursday. “Please pray for our farmers and ranchers and our first responders who continue to battle challenging fires and weather,” she says.

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Secretary of Agriculture Blayne Arthur

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Secretary of Agriculture Blayne Arthur

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Secretary of Agriculture Blayne Arthur

Dr. Randall Spare, Ashland Veterinary Center Inc., says nine years after the losses resulting from the Starbuck Wildfire — still the largest, most extensive wildfire in Kansas history — many of the same ranchers have been affected by the Ranger Road Fire.

Spare explains the wildfire was unstoppable with little farmland or breaks to get ahead of the fire plus the extreme wind. The fire started near Beaver, Okla., at 11 a.m., and he reports many ranchers in the path were moving cattle by noon. He says the highest losses occurred where there were no nearby wheat fields or safe pasture alternatives for the cattle.

“When you have contiguous grass for 90 miles, and the fire line was 90 miles long, from Beaver, Okla. to Protection, Kan., and it was moving 70 miles an hour, it’s hard to get in front of it,” he says.

He also explains because of the good moisture in 2025 and good stewardship of the land, there was a lot of tall, dense forage to fuel the fire.

“Many of the best stewards — those who don’t overgraze and stockpile grass for calving and drought management — actually experienced some of the worst damage,” he explains. “Because they’ve done a good job of managing their grass and have forage to eat in the spring of the year before the growing season starts to calve on, they experienced some of the greatest damage.”

Spare says the Ranger Road Fire took the same path as the Starbuck Fire, but it did not burn as many acres in Kansas — about one-third less in comparison.

“The good thing is it did not go north of Ashland. It’s five miles south of Ashland before it starts and not near the acreage burned,” he summarizes. “Since it isn’t like the Starbuck Fire, we have an opportunity as neighbors to help neighbors, whereas before we couldn’t do that because we were all affected.”

He predicts producers in Kansas lost 1,000 to 1,100 head. He adds there will continue to be more loss as producers evaluate cattle condition.

“One of the biggest damage is feet,” he explains. “The walls of their hooves start to fall off due to the fire. And sometimes that doesn’t show up for five days.”

How Can You Help?

According to Reuters , other fires have burned thousands more acres in Oklahoma, Kansas and Texas.

In agriculture, community is strong. When one producer hurts we all feel it and, if possible, we step up and help our neighbors in need. Along with prayers, Spare adds the immediate needs are:

Hay
Money (financial support)

In response to producers offering help, Spare shares a list of ways others can support ranchers recovering from the wildfires on social media, including lessons learned from the Starbuck Fire.

“I would like to share what we learned from the Starbuck Fire that, hopefully, will be helpful as you consider making decisions about how to help,” he writes.

Fencing supplies: “After the Starbuck Fire, we learned that if federal funds are used to rebuild and replace fences, the construction requirements to access those funds are very specific regarding type of wire, posts, etc. While the generosity of those giving nine years ago was remarkable, we were limited in how much of the donated resources actually could be used simply because federal loss recovery funds needed to be used, and the donated fencing supplies didn’t meet government specifications.”
Money: “Today, money is the most precious resource and in the greatest need. Many of the ranching operations affected need time to truly assess their losses. Some are finding cattle they first thought to be lost, alive and safe. Others are experiencing the opposite and unfortunately are seeing the losses increase.”
Available pasture and grassland: “If you have pasture available either short term or long term, please reach out to Ashland Community Foundation, Kansas Livestock Association or Ashland Veterinary Center,” he suggests.
Hay: There are designated drop off locations ready to accept loads of hay.

Multiple organizations have stepped up and are organizing supplies and assistance.

• Kansas Livestock Association. KLA is helping connect those wishing to donate with the most suitable drop location. If you’re hoping to donate goods including livestock feed or hay, you can contact KLA at (785) 273-5115, or visit this website . On KLA’s Facebook page you can find posts from feedlots that are offering pen space to wildfire victims.

• The Ashland Community Foundation. ACF is accepting monetary donations to help those affected by the fires in their community. To donate, please visit the ACF website and select “Become A Partner” in the dropdown. Donations are also being accepted at Stockgrowers State Bank or can be mailed to ACF at P.O. Box 276, Ashland, KS 67831.

• Oklahoma Cattlemen’s Foundation. OCF has established a relief fund to help cattle producers who have been affected. As the 501(c)(3) charitable arm of the Oklahoma Cattlemen’s Association, the fire relief fund at the Oklahoma Cattlemen’s Foundation will distribute 100% of received funds to affected cattle producers. You can give online or make checks payable to Oklahoma Cattlemen’s Foundation with “Fire Relief” in the memo line and mail to P.O. Box 82395, Oklahoma City, OK 73148.

• Beaver County Stockyards and Beaver County OSU Extension office. For those willing to donate feed or hay to the Beaver County, Okla., area, visit the Stockyards website or the Extension office website .

• Beaneighbor.org . The Oklahoma Healthcare Authority, provides access to local support including financial assistance, food pantries, medical care, and other free or reduced-cost help. Search for aid in your area at Beaneighbor.org.

Oklahoma Department of Agriculture, Food, and Forestry reminds the public to use caution before bringing hay to northwest Oklahoma to prevent the spread of invasive fire ants. Find out if your county is under quarantine for fire ants on the USDA website

Fire Weather is Not Over: Stay Prepared

The Kansas Forest Service reminds producers there are still months of fire season to come.

“As firefighters continue to mop up or extinguish hot spots along miles of fire line, recovery begins for the communities most impacted by recent wildfires,” the agency says. “Many wildfire managers are already preparing for the next round of fire weather.”

While recovery and readiness are happening at the same time, the forest service share these two tips:

Learn how to prepare your home and property for a wildfire. Proper preparation can help your home withstand a wildfire.
Have a plan when the wildfire is heading toward your home or property.

Texas A&M AgriLife Extension has a Fires & Wildfires website dedicated to providing resources to help prepare for and survive wildfires.

A Note to Survivors

Spare says his message to producers who are recovering from the wildfires is to:

Think beyond today. Plan not only for immediate survival but for summer grazing and next winter’s feed. Recognize that hay now is also about having feed later, since grass is gone.
Don’t be afraid to ask for help. “If you are struggling, reach out to a trusted friend and accept neighbor and outside assistance,” he stresses.

Spare summarizes producers from his area are deeply appreciative and humbled by people from across the country who helped nine years ago and are helping again now, even to the point that local folks feel “almost embarrassed” it happened again.

“But it is life, and we’re going to trust God and go on,” he says.

Your Next Read: Tips for Care Following Wildfire

U.S. Begins Dropping Sterile Flies in Texas to Stop Screwworm

Mon, 02 Feb 2026 12:48:45 GMT

New World screwworm (NWS) is inching closer to the U.S. Last week Mexico reported eight new cases in the U.S. neighboring-state of Tamaulipas. A key to slowing down the threat is being proactive.

U.S. Department of Agriculture’s (USDA) import requirements and protocols are one line of defense for NWS and other foreign animal diseases that threaten U.S. livestock. According to USDA , earlier this week, a horse from Argentina was presented for routine importation at an equine import quarantine facility in Florida.

“Upon examination, APHIS identified an open wound with larvae on the animal and promptly collected and shipped samples to the National Veterinary Services Laboratories (NVSL) in Iowa. The horse was immediately treated with medication to kill any larvae in accordance with standard, long-standing import protocols.” the release explains . “This morning, NVSL confirmed that the larvae were NWS larvae. Accordingly, the animal will remain in quarantine until it has been reexamined and determined to be free of NWS.”

This is an example of import protocols working as designed. While this situation does not appear to be associated with the NWS outbreak in Mexico, the release says it underscores the need for vigilance in all of USDA’s coordinated efforts to fight NWS.

New Action To Prevent Northward Spread

Friday, Jan. 30, USDA’s Animal and Plant Health Inspection Service (APHIS) announced a shift in its 100-million-per-week sterile fly dispersal efforts .

“USDA will reallocate aircraft and sterile insects to reinforce coverage along the U.S.-Mexico border,” according to the release. “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. Other tools including import protocols and surveillance continue to support these robust efforts to keep NWS out of the U.S.”

Dudley Hoskins, USDA undersecretary of marketing and regulatory programs, says, “At Secretary Rollins’ direction, our highest priority is protecting the United States from screwworm. The northernmost active case of NWS in Mexico is still about 200 miles away from the border, but we’ve seen cases continue to spread in Tamaulipas and further south in Mexico, so we are proactively shifting our polygon as we make every effort to prevent NWS from reaching our border.”

This follows Texas Gov. Greg Abbott’s actions on Thursday issuing a statewide disaster declaration to better equip the Texas NWS Response Team to prevent the potential spread of the NWS fly into Texas and to better protect livestock and wildlife.

“Although the New World screwworm fly is not yet present in Texas or the U.S., its northward spread from Mexico toward the U.S. southern border poses a serious threat to Texas’ livestock industry and wildlife,” said Governor Abbott. “State law authorizes me to act to prevent a threat of infestation that could cause severe damage to Texas property, and I will not wait for such harm to reach our livestock and wildlife. With this statewide disaster declaration, the Texas NWS Response Team can fully utilize all state government prevention and response resources to prevent the re-emergence of this destructive parasite. Texas is prepared to fully eradicate this pest if need be.”

Sterile Flies are Key to Stopping NWS

Sterile insect technique, when paired with surveillance, movement restrictions and education and outreach, is an effective tool for controlling and eradicating NWS. Female NWS flies only mate once in their lives, so if they mate with a sterile male, they lay unfertilized eggs that don’t hatch.

Releasing sterile flies just outside of affected areas helps ensure flies traveling to new areas will only encounter sterile mates and will not be able to reproduce.

The updated strategy will include: “USDA will release sterile flies north of the current active NWS cases in Mexico in a proactive effort to create a sterile reproduction buffer zone if the fly moves north from Mexico.”

Because it is important to continue ongoing surveillance efforts while releasing sterile insects, it is possible that sterile NWS flies could be caught and/or reported within Texas. To ensure officials can tell the difference between sterile and wild NWS flies, USDA will dye the sterile pupae, and the dye will transfer to the sterile flies when they hatch. The fluorescent dye will glow under UV light and may also be visible to the naked eye. If a sterile fly is captured in a trap, this dye will allow animal health officials to quickly rule the fly out as a threat.

“USDA will continue to deploy its intensive NWS response efforts including implementing import protocols, ongoing surveillance and trapping efforts along the border, investing in NWS innovation, and supporting robust response activities in Mexico and Central America,” the release says.

Surveillance, Monitoring and Reporting Continues

USDA continues to lead intensive surveillance and monitoring systems along the U.S. border. Teams continue to check 121 NWS-specific traps across high-risk areas of border states and leverage thousands of fruit fly/insect traps aligned all along the Southern border. To date, more than 42,000 flies from traps in all locations have been submitted to APHIS NVSL for identification, with no NWS detections to date.

APHIS Wildlife Services is also leading a coordinated effort to inspect wildlife for signs of NWS infestation. To date, they’ve inspected more than 9,300 wild animals across 39 different species and 131 U.S. counties and found no signs of NWS infestations.

Texas Takes Preemptive Action

The Texas release says Governor Abbott actions against the threat posed by NWS include:

Directing the Texas Parks and Wildlife Department (TPWD) and the Texas Animal Health Commission (TAHC) to establish a joint Texas NWS Response Team.
Partnering with the U.S. Department of Agriculture and Secretary Brooke Rollins to create a new $750 million Domestic Sterile NWS Production Facility in Edinburg, Texas.

“I’m glad to see the urgency from the governor’s office matching the seriousness of this threat,” says Texas Ag Commissioner Sid Miller. “The Governor’s disaster declaration gives his task force greater authority, resources, and speed needed to confront the growing threat posed by the New World screwworm. This is a serious risk to our livestock industry and one that the Texas Department of Agriculture has been preparing for through our own heightened surveillance, coordination, and response planning.”

Miller adds, “This fight requires every available resource to be thrown at it without delay, and TDA will continue to work alongside our state and federal partners to protect our livestock, pets, wildlife, and Texas communities.”

For more information on NWS and USDA’s efforts, visit Screwworm.gov

New World Screwworm Found in Newborn Calf 197 Miles from U.S.-Mexico Border

Wed, 31 Dec 2025 16:20:11 GMT

On Dec. 27, Mexico’s National Service of Agro-Alimentary Health, Safety, and Quality (SENASICA) reported a new case of New World screwworm (NWS) in a 6-day-old calf with an umbilical lesion in Llera, located in the state of Tamaulipas, approximately 197 miles from the U.S.-Mexico border.

According to the Texas Animal Health Commission, there have been no other detections in Tamaulipas or any evidence of established fly populations in the area.

To support a swift response if NWS reaches Texas, producers located on the southern border and travelers from NWS-affected areas should closely monitor animals for signs and promptly report suspected cases of NWS.

Read more about how to identify NWS:
The Smell You’ll Never Forget: A Calf Infested with New World Screwworm
Protect Your Livestock: Signs of New World Screwworm

A suspected NWS case requires immediate action, but it all starts with one thing: your call. If you suspect an infestation, report it right away.

The Texas Animal Health Commission recently posted this video explaining the process for producers to take if they suspect a NWS case:

What Are Some Key Concerns if NWS Crosses the Border?

Texas beef producer Donnell Brown says NWS poses a real threat to rural America.

“Fortunately, we made it to winter without a major screwworm infestation in the United States,” he says. However, as temperatures rise this spring and fly season begins again, I am deeply concerned that we could see an outbreak with devastating consequences for livestock and wildlife.”

Read more about NWS and winter:
Winter: The Secret to Slowing the Spread of Screwworm

Brown recalls the previous NWS outbreak in Texas.

“Compared to the last screwworm epidemic I experienced as a child, we now have far more effective parasiticides with extended protection for livestock,” he says. “Unfortunately, we still lack practical ways to treat or protect wildlife. After the screwworms were eradicated in the 1970s, it was 15 years before I remember seeing deer on our ranch. Today, deer are abundant and hunting has become a major economic driver for ranchers and rural communities.”

Read more about NWS treatment and prevention options:

FDA Approves Exzolt Cattle-CA1 for Prevention and Treatment of New World Screwworm
FDA Approves Dectomax-CA1 for Prevention and Treatment of New World Screwworm
New Technology to Combat New World Screwworm

Browns says if NWS cause significant wildlife losses, the ripple effects would be severe.

“Fewer hunters would travel from cities to rural areas, reducing spending on food, fuel, feed, lodging and other local necessities. This would harm rural economies already under pressure,” he explains. “The risk is especially high because fawns and many other wild mammals are born during fly season. Their wet navels become prime targets for screwworm infestation, making the potential impact on wildlife populations both immediate and profound.”

Read more about NWS and wildlife:
The Importance of Wildlife Monitoring for New World Screwworm

Sterile Flies Remain Key to Eradicating New World Screwworm

“The continued detections of New World screwworm near the Texas border are grim reminders of the serious threat this pest poses to our state,” says Texas Agriculture Commissioner Sid Miller. “Thanks to the efforts of USDA Secretary Brooke Rollins and APHIS working in coordination with Mexico, its northward spread has been halted, and this recent case promises to be a one-off, for now. But to fully eradicate this threat, the bottom line remains unchanged: we need sterile flies. I said as much a year ago when I criticized the Biden Administration’s failed efforts to corral this pest — dollars don’t kill screwworms, sterile flies do.”

Under President Trump’s leadership, Secretary Rollins and the USDA have now committed to a historic, targeted response that will deliver real results.

“Earlier this year, I was proud to stand alongside Secretary Rollins in Edinburg, Texas, as she unveiled her comprehensive five-point plan , and again at the Texas Capitol as that plan was expanded ,” Miller says. “I will continue to support and advocate for federal efforts to expand sterile insect fly production and infrastructure, because this proven strategy is key to the long-term eradication of New World screwworm.”

Current information related to NWS is available on the USDA-APHIS website , including a current situation map and table showing cases within 400 miles of the U.S.

Your Next Reads:
The Battle at the Border
Preparing for the Battle Continues: USDA Shares Screwworm Update and Releases NWS Playbook

Second Screwworm Detection 120 Miles from U.S. Border

Wed, 03 Dec 2025 20:54:05 GMT

There was a new detection of New World screwworm (NWS) in Montemorelos, Nuevo León, Mexico, approximately 120 miles south of the Texas border.

USDA’s Animal and Plant Health Inspection Service (APHIS) confirmed the case in a 22-month-old bovine transported from Veracruz to a feedlot in Nuevo León.

Texas Agriculture Commissioner Sid Miller in a press release emphasized that Texas remains free from detection, but that state officials and agriculture leaders cannot be complacent.

Texas Agriculture Commissioner Sid Miller today issued the following statement after being notified by the U.S. Department of Agriculture (USDA) of a new detection of the New World screwworm (NWS) in Montemorelos, Nuevo León, Mexico, approximately 120 miles south of the Texas… pic.twitter.com/Wb3uIwW3gf
— Texas Agriculture (@TexasDeptofAg) December 3, 2025

“We will keep working shoulder to shoulder with USDA, Mexican animal health authorities, and our own state agency partners to defend our border and Texans from this dangerous threat. We will protect our livestock, safeguard our economy, and do everything possible to keep the New World screwworm at bay,” Miller says.

He also encourages Texas producers to remain watchful for suspicious wounds, unhealed tissue, or maggot activity in livestock, wildlife, and pets, particularly in locations near the border.

Producers who suspect NWS should immediately contact their local veterinarian and state authorities. Early detection, strict livestock movement controls, screwworm fly suppression and rapid response are the best tools to combat this serious threat.

This detection marks the northernmost active case currently found in Mexico. It is also the second detection at the same Nuevo León feedlot since October. No additional cases were linked to the October detection, and both events appear tied to livestock movements from southern Mexico.

For more on NWS, including a current list of NWS detections within 400 miles of the U.S. visit Screwworm.gov .

Your Next Reads:
Next Step in the Screwworm Fight: USDA Announces Opening of Sterile Fly Dispersal Facility in Tampico, Mexico
The Smell You’ll Never Forget: A Calf Infested with New World Screwworm

Equine Herpesvirus Cases Continue to Climb After Outbreak in Texas

Fri, 21 Nov 2025 20:59:45 GMT

A wave of concern is sweeping across the U.S. equine industry as a cluster of confirmed cases of Equine Herpesvirus-1 (EHV-1) has been linked to the Women’s Professional Rodeo Association World Finals and Elite Barrel Race event held November 5-9 in Waco, Texas. Since this event, EHV-1 infection has led to 15 confirmed cases of equine herpesvirus myeloencephalopathy (EHM) with seven cases in Texas, three each in Louisiana and Oklahoma, and one each in Colorado and New Mexico.

This number has doubled in the past 36 hours, according to case reports by the Equine Disease Communication Center .

EHV-1 is a highly contagious virus in horses that can cause respiratory and reproductive issues and neurological disease. It spreads among horses through direct contact with respiratory secretions, inhalation of aerosolized respiratory droplets (distances less than 30'), or contact with contaminated people or equipment.

With virus spread possible, it’s important to be vigilant with quarantining and reducing exposure. This includes preventing the movement of exposed horses, and avoiding sharing any grooming equipment, water and feed sources, or any other tools between infected and healthy horses. Also take care to change your clothes and thoroughly wash your hands and arms after working with infected horses. It is important to note that this virus can survive in the environment for several weeks.

Texas agriculture commissioner Sid Miller issued an alert earlier this week:

“The virus can spread fast, it can be deadly, and the earliest signs are often so subtle they’re easy to miss. That’s why monitoring your horses right now is critical. The quicker we identify a potential case, the better chance we have to protect not only our animals, but the entire Texas equine community.”

Monitoring for and Limiting EHV-1 Infection

The clinical signs of EHM include:

Fever
Incoordination or limb weakness (especially hind limbs)
Urine dribbling
Decreased tail or anal tone
Inability to stand

Dr. Dusty Nagy, chief medical officer of the Texas A&M Large Animal Hospital, advises horse owners, trainers and practitioners to closely monitor their animals and check their temperatures at least twice daily. Fever is often the first indicator of EHM, but can it fluctuate through the day.

Nagy believes the numbers will only climb as the incubation period for the initial exposure increases.

“I do think that is probably an understatement for where we are right now as there’s a lot of testing pending,” Nagy says. “There are definitely horses out there that have been exposed, that are shedding, that appear healthy.”

To prevent further spread of this highly infectious virus, Nagy urges all horse owners to quarantine their horses.

“I recognize that there’s a lot of high end equine athletes that are involved in this, and this is a big time of the year for them. That’s a hard recommendation to take, but I do think the easiest way to stop or slow it down is to stop animal movement,” Nagy says.

Next Step in the Screwworm Fight: USDA Announces Opening of Sterile Fly Dispersal Facility in Tampico, Mexico

Thu, 13 Nov 2025 18:38:40 GMT

USDA announced Thursday the opening of a sterile fly dispersal facility in Tampico, Mexico. The Tampico facility will allow USDA to disperse sterile flies aerially across northeastern Mexico, including in Nuevo Leon. This announcement is the next milestone in the fight against New World screwworm (NWS).

“The opening of the Tampico sterile fly dispersal facility is another incredibly important tool in our arsenal to stop the spread of screwworm. The facility will ensure flexibility and responsiveness in northern Mexico, giving us a greater ability to drop sterile flies and continue to push the pest south,” said U.S. Secretary of Agriculture Brooke Rollins in a press release . “Stopping the spread of screwworm is a top priority for the entire Trump administration.”

Last week Rollins met with Mexican President Claudia Sheinbaum and her counterpart Secretary Julio Berdegue on the joint response to NWS.

“We are boosting our efforts and completing a joint review of our screwworm operations in Mexico to ensure our protocols are being followed,” she says. “As we enter the winter months , we continue to prioritize the response in Mexico and the rest of our five-pronged plan to protect U.S. livestock and the livelihoods of American farmers and ranchers.”

A proven method for NWS eradication is releasing sterile male flies to mate with wild females collapsing the population over time. There are two methods of dispersing sterile insects – aerial dispersal and ground release chambers. Aerial operations are preferred because they allow for dispersal at a steady rate through a large area and also because sterile insects may be dispersed in areas that are unreachable from the ground. Ground release chambers are used when there’s a need to quickly deploy sterile insects outside of the dispersal facility range.

Learn more about NWS:
The Smell You’ll Never Forget: A Calf Infested with New World Screwworm

According to the press release, USDA continues to disperse 100 million sterile flies per week in Mexico, but until now, aerial operations have been limited to southern Mexico, necessitating the use of ground release chambers in more northern areas of the country. Mass production and targeted dispersal of sterile flies remain critical components of our effective response.

Although Mexico continues to confirm new cases of NWS, the overwhelming majority of these remain in the far southern part of the country, with no significant northward expansion over the past several months. Should that change, the Tampico facility will allow USDA to immediately tackle any cases that occur elsewhere in Mexico.

The two northernmost detections (approximately 70 and 170 miles from the U.S. border, respectively) occurred in Nuevo León, on Sept. 20 and Oct. 5 , in young cattle transported from Chiapas, Mexico.

Neither case is still active and there have been no additional detections of NWS flies in traps or cases in animals in Nuevo Leon. USDA continues to disperse sterile insects in Nuevo Leon, and will now transition from ground release chambers to aerial dispersal in those areas.

USDA produces sterile flies for dispersal at the COPEG facility in Panama. USDA is also investing $21 million to support Mexico’s renovation of an existing fruit fly facility in Metapa — which will double NWS production capacity once complete. With ongoing support from APHIS technical experts, Mexico anticipates this sterile fly production to begin as soon as summer 2026.

To expand our domestic response capacity, USDA has also begun construction on a sterile fly dispersal facility at Moore Air Base in Edinburg, Texas, that is projected to begin operating in early 2026. APHIS is also expediting design and construction of a sterile fly production facility in southern Texas, with a targeted maximum capacity of 300 million sterile flies per week.

USDA continues to work with Mexico’s agriculture authority, SENASICA, to implement the collaborative NWS Action Plan and guide trapping, surveillance and movement protocols to help stop the northward spread of NWS.

Trade Mission While In Mexico

While Rollins was in Mexico last week, she also led the largest U.S. Department of Agriculture agribusiness trade mission in history. During the mission, 41 U.S. businesses, 33 cooperators and agriculture advocacy groups, six state departments of agriculture, and 150 participants conducted more than 500 business-to-business meetings during the three days.

According to a USDA press release , “This was a critical opportunity for American business to further trade ties and for USDA to continue its aggressive response to NWS in Mexico and continue to hold Mexico accountable for its commitments to the 1944 Water Treaty.”

Honored to lead the largest @USDA Agribusiness Trade Mission in US history to Mexico City!

Over three days, our delegation of 41 US businesses, 33 cooperators, 6 state departments of agriculture, and 150 participants held more than 500 business-to-business meetings - deepening a… pic.twitter.com/39rGi9Snhj
— Secretary Brooke Rollins (@SecRollins) November 13, 2025

Your Next Read: Preparing for the Battle Continues: USDA Shares Screwworm Update and Releases NWS Playbook

Winter: The Secret to Slowing the Spread of Screwworm

Thu, 02 Oct 2025 11:03:28 GMT

Winter or colder temperatures — it’s not something you typically hear livestock producers anticipating or praying for. But this year, as the threat of New World screwworm continues to inch closer to the U.S.-Mexico border, winter can’t come soon enough.

“Certainly, winter will be our friend,” says Chris Womack, a veterinarian and rancher from San Angelo, Texas. “Historically the flies were pushed south with frost.”

USDA Agricultural Research Service entomologist Kim Lohmeyer agrees we need winter to come fast. Lohmeyer serves as the laboratory director of the Knipling-Bushland U.S. Livestock Insects Research Laboratory in Kerrville, Texas, where she and her colleagues use modeling to know when and where NWS may show up in the U.S. They are partnering with Lee Cohnstaedt and his team at the National Bio and Agro-Defense Facility in Manhattan, Kan., to study the life stages of NWS and its susceptibility to temperature and weather.

“With the climate changes and weather patterns we have now, if this fly gets here, it can go a lot further north, a lot further east and a lot further west,” Lohmeyer says. “It’s something to keep an eye on.“

The Winter Win

So, what exactly does “winter” mean? Lohmeyer says NWS are fairly cold sensitive, so several days of sustained cold temperatures in around 30°F would be enough to suppress NWS.

The NWS’s ability to survive is restricted to locations where low temperatures are regularly above freezing. Ideal adult fly activity occurs at 77°F to 86°F and relative humidity of 30% to 70%.

“This fly really loves 81.5°F,” explains meteorologist Matt Makens. “The research shows that’s when they’re friskiest.”

Although the Sterile Insect Technique (SIT) remains a primary control mechanism, Makens says studies have made it clear that eradication success, outbreak intensity and re-emergence potential are closely tied to weather and climate.

“From seasonal wind patterns to monsoonal moisture, numerous environmental conditions shape the life cycle, spread and population dynamics of this parasite,” Makens explains. “Understanding these weather-related drivers is critical not only for control, but also in considering how long-term temperature trends have altered the geographic boundaries of screwworm viability since the major outbreaks of the 1950s and early 1960s.”

During a recent Cattlemen’s Call podcast Makens said weather is one of the main forces of spreading NWS.

“If we could control the weather, we could control the fly,” he stresses.

(Maps: Makens Weather)

Research indicates larval and pupal development cannot proceed below approximately 58°F and halts above 110°F. The optimal temperature for adult survival and reproduction lies around 81.5°F, a range common in tropical and subtropical climates like Mexico and Central America. NWS do not survive in regions with cold winters, though they may spread into these areas during the warmer months.

Impact of temperature on NWS:

Reduced activity: Adult screwworm fly activity is limited when temperatures are below 59°F.
Larval vulnerability: Pupae are vulnerable to soil temperatures below 46°F. Sustained maximums hotter than 95°F can also be limiting — extreme heat reduces adult fly activity and increases mortality in larvae exposed to hot surface soils.
Life cycle: While the entire life cycle can be completed in warm conditions, it takes longer in cooler, more temperate environments.

“One of the secrets to historically, the northern limit of screwworm, was basically a matter of how cold the winter got. That sort of limited how far it got,” says Derrell Peel, Oklahoma State University Extension livestock marketing specialist. “In years when it was warmer, it would go farther. It would overwinter farther north, but in general, that’s going to set the upper limit, or at least it does if it’s not under control in any other way. That will limit its northward, northern movement, for sure.”

1972 NWS data (A) Monthly maps of observed cases of myiasis in Texas during the 1972 outbreak. Highest abundance occurred in August, and the length of all other density colour bars were scaled to it (bars in right hand margin of each map). The maximum density is at the top of each colour bar with the highest midseason incidence occurring in south central Texas. (B) Histogram summarizing the monthly total statewide data. (C) Map of total cases of myiasis during 1972.

(Medical and Veterinary Entomology)

Fly Season

David Anderson, Texas A&M professor and Extension specialist, says, historically, the fly season is April to October.

“If we get a really cold winter, that helps us,” Anderson adds. “It buys us some more time. But things are warmer now than it used to be. Fly season may not be that April to October anymore.”

NWS’s typical life cycle lasts about 21 days in warm weather and slightly longer in cooler climates. According to Texas A&M AgriLife Extension Service, NWS fly life cycle is highly sensitive to temperature:

In warm (more than 80ᴼF daytime highs) and tropical conditions, the full life cycle may be complete in two to three weeks.
In more temperate conditions, the life cycle may take three to four weeks.
In cooler conditions, the life cycle may take up to two to three months.

It is important to understand that the flies do not die at these lower activity temperatures, but prolonged exposure to these temperatures can reduce populations or active infestations.

Texas rancher Wayne Cockrell says NWS’s entry into the U.S. is inevitable but suggests winter and colder weather might temporarily delay the spread until next April or May. Cockrell serves as the Southwestern Cattle Raisers Association director and chair of the cattle health and well-being policy committee.

“We should be within 60 days hopefully when cold weather helps in two-thirds of the state,” Cockrell explains.

Rainfall and Monsoon Factors

Makens says while temperature defines where screwworms can survive, rainfall and moisture influence when and how intensely they can thrive. Outbreaks often follow moderate to heavy rainfall by improving conditions for larval survival.

He explains tools like the Palmer Crop Moisture Index (CMI) have shown promise in predicting screwworm risk, with higher-than-normal CMI values sometimes preceding population spikes.

When rainfall coincides with favorable temperatures, screwworm activity tends to increase. In contrast, hot and dry conditions tend to suppress survival and reproduction.

“One of the most striking climate connections is the role of seasonal monsoon winds in transporting screwworms over long distances,” Makens explains. “In multiple outbreak years, adult flies were documented migrating northward into Texas and the desert Southwest via the North American Monsoon (NAM) — a seasonal pattern that delivers moisture to northwestern Mexico and the U.S. Southwest from June through September. During the summer, prevailing winds shift from west to a more humid, southerly flow, creating favorable conditions for fly migration from central and southern Mexico into their northern states and, at times, into the southern U.S. The NAM this year had an early start and gave significant rainfall to parts of Arizona and New Mexico. The NAM typically calms by early fall.”

In the 1960s, these wind-assisted movements allowed the temporary re-establishment of breeding populations even after local eradication. In some years, migration spanned hundreds of miles, connecting source populations in northern Mexico to re-infestations in Arizona and New Mexico.

“This atmospheric ‘conveyor belt’ remains a critical concern in surveillance strategies for livestock-producing regions of the Southwest,” Makens says. “The 2025 monsoon was undoubtedly a factor in the most recent northward migration of NWS.”

If NWS should cross the border, it will be key for producers to coordinate management practices with weather patterns expected for their region.

“Ultimately, weather patterns act as both a barrier and bridge for screwworm activity,” Makens summarizes. “Knowing how and when the balance tips is essential to preventing the return of one of the industry’s most damaging parasites.”

Here’s to hoping Old Man Winter decides to arrive quickly and help buy livestock producers and government leaders more time to prepare to battle NWS.

Your Next Read: The Battle at the Border

New Technology to Combat New World Screwworm

Tue, 30 Sep 2025 15:41:26 GMT

The U.S. Department of Energy’s National Nuclear Security Administration’s (NNSA) Office of Radiological Security (ORS) is partnering with Texas A&M University to combat New World screwworm (NWS) .

On Sept. 21, USDA announced NWS had been found less than 70 miles from the U.S. border near one of the most heavily trafficked commercial thoroughfares in the world.

Working with Texas A&M’s National Center for Electron Beam Research (NCEBR), NNSA is advancing the Sterile Insect Technique (SIT) using electron beam (eBeam) technology in place of radioactive cobalt. SIT effectively prevents the spread of NWS by releasing sterilized male screwworms to halt reproduction and reduce their population.

According to the release, ORS’s mission includes preventing the misuse of highly radioactive materials and promoting innovative alternatives like eBeam devices. The eBeam technology eliminates the need for radioactive sources, which could be used for nefarious purposes if they fell into the wrong hands.

This collaboration enhances radiological security best practices nationwide, thus strengthening national security.

“Our mission-driven partnership with Texas A&M is essential to advancing American innovation in eBeam applications and enhancing our national security,” says Kristin Hirsch, Director of ORS. “With the support of Texas A&M AgriLife experts, NNSA is able to help combat the spread of the NWS, building stronger food systems and safer communities across the country.”

U.S. Secretary of Agriculture Brooke Rollins recently announced a new NWS fly dispersal facility in Texas and a five-pronged plan for eradicating the pest. The plan includes the USDA pursuing innovative research, such as eBeam and other technologies.

Currently, SIT relies on cobalt-60 gamma sterilization. But cobalt-60 carries significant radiological security risks, so NNSA, NCEBR and Texas A&M’s Department of Entomology have worked to find replacement methods. Through modeling studies sponsored by NNSA and conducted by Texas A&M since 2023, researchers identified eBeam technology as a viable alternative and are working to make it available to USDA to combat NWS.

The eBeam system at work, sterilizing screwworm pupae. This technology is vital for protecting U.S. agriculture and radiological security.

(U.S. Department of Energy NNSA)

NNSA has been collaborating on the development of an eBeam system to be used for chemical remediation, another critical area where cobalt-60 use could become a risk. NNSA is repurposing this technology toward NWS response and accelerating development to make eBeam available to USDA by early 2026.

Once integrated into a rearing facility, it could create more than 100 million sterile flies in 24 hours. That’s a vast improvement compared to cobalt-60, which can take a week to do the same amount. This efficiency would be a game-changer in NWS response.

Your Next Read: The Battle at the Border

U.S.-Mexico Border Battle Continues As the Threat of New World Screwworm Intensifies

Wed, 24 Sep 2025 20:04:06 GMT

With New World screwworm (NWS) confirmed just 70 miles from the U.S. border , producers, government officials and industry leaders are taking action. Finding NWS along one of the most heavily trafficked commercial thoroughfares in the world from Monterrey, Nuevo Leon, to Laredo, Texas, is a red flag for the industry. Emphasizing the importance of maintaining strong safeguards, it’s time to plan for not “if but when” NWS crosses the border.

On Monday, Secretary of Agriculture Brooke Rollins confirmed protecting the U.S. from NWS is non-negotiable and a top priority for President Trump.

UPDATE ON SCREWWORM THREAT:

Protecting the United States from New World Screwworm is non-negotiable and a top priority for @POTUS.@USDA landed boots on the ground this morning in Nuevo Leon, physically inspecting traps and dispersing sterile flies after the detection of the…
— Secretary Brooke Rollins (@SecRollins) September 23, 2025

“The southern border remains closed to livestock trade, and we are aggressively expanding trapping and surveillance,” she wrote. “At the same time, we’re expediting operations at our sterile fly dispersal facility at Moore Air Base in Texas .”

On Tuesday, Secretary of Agriculture Brooke Rollins reported 80,000 sterile flies were released on “spot” and nearly 200 surge staff had been deployed to Mexico.

Thank you, @IngrahamAngle, for paying attention to this important issue. Due to multiple failures from our southern neighbors and failure to act in the last Admin, the devastating parasite New World Screwworm is knocking on our southern borders door. We’re not waiting, we’re… pic.twitter.com/ZO5Vx5oes8
— Secretary Brooke Rollins (@SecRollins) September 24, 2025

Mexico’s Response To New World Screwworm

According to Reuters, Mexican’s agriculture ministry said there is no risk of adult screwworm fly emergence due to the early detection of the infected bovine, which was confirmed on Sept. 21. The infected animal was in a shipment of 100 animals originating from the Gulf Coast state of Veracruz, according to the statement.

Fly traps in northern Mexico have not detected a single screwworm fly.

U.S.-Mexico Border Remains Closed to Cattle Trade

The Mexican border closure remains a topic of debate. The September Ag Economists’ Monthly Monitor found 80% of ag economists surveyed oppose reopening the border to Mexican cattle due to screwworm risks.

(Farm Journal)

The border closure has created significant division within the cattle industry with producers, feeders and industry leaders on both sides of the fence.

“We have some cattle people that are glad it’s closed. We’ve got others who are hit pretty hard and are not happy about it,” explains David Anderson, Texas A&M professor and extension specialist — livestock and food product marketing.

NWS is a threat the industry can not ignore, says the ag economist with more than 30 years under his belt.

“I think this is the most serious problem the industry has faced since I’ve been a livestock economist,” he stresses.

From his perspective, keeping the border open with heightened monitoring and surveillance could have potentially been more effective than implementing a total closure.

“If we go back and look at data from the early ‘70s, when we had a big screwworm outbreak in the U.S. and Mexico, the border was open,” he says. “I probably would have leaned to not closing the border to begin with. I understand why you would want to do that, but I don’t know that it’s ended up reducing the likelihood that we’re going to get screwworms, and yet we’re paying a price for that.”

According to Anderson the economic consequences to the border being closed are:

Significant loss of approximately 26,000 imported cattle weekly
Estimated 18% reduction in cattle placements in Southern plains
Contributed to tighter beef supplies and higher consumer prices
Substantial economic hit to cattle feeders and ranchers

At this point, he’s quick to admit keeping the border closed is the best option.

When it comes to reopening the border, Derrell Peel, Extension livestock marketing specialist with Oklahoma State University, suggests the decision is not straightforward.

“Given everything I’ve experienced, it’s probably prudent to leave the border closed,” he says.

He adds any reopening should be “under very, very controlled, limited circumstances.”

Peel emphasizes the need for a collaborative approach with Mexico.

“We’re kind of in it together, and so whether it’s here or there, we’ve got to work together,” he summarizes. “We’re going to need to control it in both places. Otherwise, it’s not going to benefit either one of us.”

He also points out not everybody in Mexico is sorry the border is closed. For example, cattle buyers in Mexico can source cattle cheaper because the border is closed.

“Keeping the border closed does affect the movement of cattle south of the border ... it builds a backstop for cattle movement north,” he adds.

Peel notes cattle from Central America to Panama have increasingly made their way to the Mexican market, which validates NWS movement in Mexico and why recent confirmation has occurred.

“The longer this goes on, the more the Mexican industry will adjust,” he says. “It might permanently change the way the [U.S. and Mexico] work together.”

Texas Rancher Weighs In On Impact of New World Screwworm

Texas rancher Wayne Cockrell says the parasite’s entry into the U.S. is inevitable, suggesting that winter and colder weather might temporarily delay the spread until next April or May. Cockrell, who serves as the Southwestern Cattle Raisers Association director and chair of the cattle health and well-being policy committee, recently joined AgriTalk to talk about NWS.

“We would much rather stop this on Mexico’s southern border than our Southern border,” Cockrell says.

Mexican feeder cattle traditionally represented 30% of Texas feedyard inventory, he adds, but with current restrictions, feedlots are adapting.

“I think a lot of those feedyards have moved to the dairy-cross side,” he adds. “They have had to change the way they do business.”

Noting the broader economic implications of the border closure, 1.2 million fewer cattle for Texas represents “about two weeks” of impact nationwide, according to Cockrell.

“Winter and sterile flies is what we need now,” Cockrell summarizes.

Your Next Read: The Smell You’ll Never Forget: A Calf Infested with New World Screwworm

Texas A&M Researchers Study Diet’s Impact On Salmonella Prevalence In Cattle

Mon, 25 Aug 2025 15:29:16 GMT

Salmonella is one of the leading causes of foodborne illnesses in the U.S., according to the Centers for Disease Control and Prevention, and can spread to people from a variety of foods, including beef. Understanding how and why cattle become infected with Salmonella is an important part of fighting this major public health concern.

Researchers at the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS) are addressing this problem from a new angle by studying how diet and feeding schedule impact Salmonella infections in cattle.

Their recent study , published in the American Society for Microbiology’s Microbiology Spectrum journal, found that high-starch diets can potentially lower Salmonella prevalence in cattle, especially within the lymph nodes — organs that are often embedded in fat trims included in ground beef products.

“Lymph nodes may be present in fat trimmings that are used to balance lean-to-fat ratios in ground beef products,” says Yesica Botero, a fourth-year biomedical sciences doctorate student. “This is a food safety concern because Salmonella can hide inside lymph nodes, where surface cleaning or treatments do not reach. As a result, it can still be present in ground beef.”

Feedyard cattle are typically fed a high-energy, grain-based diet designed to promote rapid growth and efficient weight gain.

Understanding the role that a high-starch diet potentially plays in reducing Salmonella prevalence could have major impacts on the beef cattle industry, providing ranchers with new options for controlling the spread of bacteria within their herds.

Taking A New Approach

The Texas A&M project was designed to study feedlot cattle that Dr. Kendall Samuelson, from West Texas A&M University, was examining in a separate project to see whether high-starch diets and feeding schedules impact liver abscess formation.

“We aimed to understand the factors that contribute to the presence and distribution of salmonella in feedlot cattle,” said Dr. Gizem Levent , a VMBS assistant professor in the Department of Veterinary Integrative Biosciences . “There aren’t many studies focusing on understanding how diet and management changes impact Salmonella.”

Botero and Levent took samples of feces, hides, lymph nodes and soil from Samuelson’s cattle pens over a period of more than seven months. They found that while there was little difference in Salmonella populations between cattle with scheduled versus erratic feedings, the level of starch in the diet made a notable impact.

“We saw a reduction in Salmonella, especially in the lymph nodes, when cattle were fed a high-starch diet,” Botero says. “High-starch diets typically cause a lower pH in the rumen, which may be what reduces Salmonella prevalence in the gastrointestinal tract and, subsequently, in lymph nodes.

“Findings from Dr. Samuelson’s original study suggested that high-starch diets may also correlate with a higher incidence of liver abscesses,” she says. “This is something we would like to explore further in upcoming studies by testing different starch concentrations in the diet to find one that does not harm cattle health — such as by increasing the risk of liver abscesses — but still helps lower Salmonella levels.”

Continuing The Investigation

In addition to studying how different levels of starch impact liver abscesses and Salmonella, Levent and Botero are planning to dive even deeper into the data to study the specific serotypes, or genetic profiles of Salmonella, observed in their samples.

“We want to do a follow-up study with more in-depth analysis of the dynamics of the Salmonella population,” Botero says. “By looking at the genetic profiles, we can better understand which serotypes are present, how they might respond to antibiotics, and whether they carry genes that make them more likely to survive or spread in the environment.”

Fortunately, what they have seen so far from the feedlot samples does not indicate a high presence of Salmonella or serotypes resistant to antibiotics.

“The overall Salmonella population found was not resistant to antibiotics of public health concern, which is good news for public health,” Levent said. “But we will definitely keep screening for resistance so that we can better understand what makes resistant populations exist in the environment.”

New World Screwworm Battle: Texas to Deploy Fly Bait That Mimics Open Wound Scent

Wed, 23 Jul 2025 14:29:55 GMT

Texas Agriculture Commissioner Sid Miller has announced a bold step forward in the battle against New World screwworm (NWS). Working closely with USDA and Secretary of Agriculture Brooke Rollins, the Texas Department of Agriculture (TDA) is spearheading efforts to reintroduce an improved pest control method to NWS — Swormlure Bait .

“The New World screwworm is not just a Texas problem,” Miller says. “This is a nationwide crisis with potential massive implications for American agriculture, which could result in billions of dollars in economic losses and place a heavy burden on our agriculture, wildlife industries and public health systems. We cannot wait for sterile flies alone to turn the tide. That’s why we’re applying a little cowboy logic and bringing back Swormlure, now with an enhanced formula that’s more powerful and effective than ever.”

The NWS issue has shut down cattle imports from Mexico into the U.S.

The NWS was eradicated from the U.S. in the 1960s but experienced an isolated outbreak in the 1970s. It was ultimately eliminated again through a coordinated response that included the release of sterile flies, deployment of the Swormlure-2 attractant, and application of the insecticide Dichlorvos.

What is Swormlure?

A synthetic bait designed to attract adult screwworm flies, Swormlure may be highly effective when combined with insecticides, such as Dichlorvos, in eradicating NWS. Miller has directed TDA to lead development and deployment of this bait to enhance eradication efforts.

“Swormlure-5, created using modern science and built upon previous versions — Swormlure-2 and Swormlure-4 — is a potent synthetic attractant that mimics the scent of open wounds, drawing adult screwworm flies to the bait, where they die,” Miller explains.

Swormlure-5 bait, when used as an attractant and capture tool, is highly targeted. The attractant only impacts screwworm and blow flies and should pose no threat to beneficial insects such as honeybees, monarch butterflies or other pollinators.

“Today, we’re doing it smarter, faster and stronger. Swarmlure-5 bait will attract and trap flies, specifically screwworm and blow flies, which are both better off dead,” Miller adds. “In prior research and deployment, this method eliminated approximately 90% of the flies within a two-to-four-week period. The remaining 10% were eliminated with the release of sterile male flies in the areas where traps were deployed.”

This effort should reinforce existing sterile fly operations and supercharge early detection and suppression of screwworm fly populations.

This collaboration with USDA and Rollins emphasizes Texas’ leadership in agricultural biosecurity. TDA will coordinate the deployment of specialized Swormlure-5 traps to monitor and control potential hotspots in collaboration with USDA, the Government of Mexico and other state and federal partners.

“We’ve beaten the NWS before, and we’ll do it again. But it will take all hands on deck,” Miller adds. “We need another success story like we had in the ’70s, and I believe Swormlure-5 bait is the game-changer that will get us there.”

Your Next Read: The Smell You’ll Never Forget: A Calf Infested with New World Screwworm

Breaking: Mexican Border Closed Again as New World Screwworm Comes Within 370 Miles of the U.S.

Thu, 10 Jul 2025 13:38:15 GMT

On July 8, Mexico’s National Service of Agro-Alimentary Health, Safety and Quality reported a new case of New World screwworm (NWS) in Ixhuatlan de Madero, Veracruz, Mexico, which is approximately 160 miles northward of the current sterile fly dispersal grid on the eastern side of the country and 370 miles south of the U.S./Mexico border.

This new northward detection comes approximately two months after northern detections were reported in Oaxaca and Veracruz, less than 700 miles away from the U.S. border, which triggered the closure of our ports to Mexican cattle, bison and horses on May 11, 2025 .

While USDA announced a risk-based phased port re-opening strategy for cattle, bison and equine from Mexico beginning as early as July 7, 2025 , this newly reported NWS case raises significant concern about the previously information shared by Mexican officials and severely compromises the outlined port reopening schedule of five ports from July 7 to Sept. 15. Therefore, in order to protect American livestock and the U.S. food supply, Secretary of Agriculture Brooke Rollins has ordered the closure of livestock trade through southern ports of entry effective immediately.

“The United States has promised to be vigilant — and after detecting this new NWS case, we are pausing the planned port reopening’s to further quarantine and target this deadly pest in Mexico. We must see additional progress combatting NWS in Veracruz and other nearby Mexican states in order to reopen livestock ports along the Southern border,” Rollins says. “Thanks to the aggressive monitoring by USDA staff in the U.S. and in Mexico, we have been able to take quick and decisive action to respond to the spread of this deadly pest.”

To ensure the protection of U.S. livestock herds, USDA is holding Mexico accountable by ensuring proactive measures are being taken to maintain a NWS free barrier. This is maintained with stringent animal movement controls, surveillance, trapping and following the proven science to push the NWS barrier south in phases as quickly as possible.

In June, Secretary Rollins launched a 5-point plan to combat NWS by protecting our border at all costs, increasing eradication efforts in Mexico, and increasing readiness. USDA also announced the groundbreaking of a sterile fly dispersal facility in South Texas. This facility will provide a critical contingency capability to disperse sterile flies should a NWS detection be made in the Southern U.S.

Simultaneously, USDA is moving forward with the design process to build a domestic sterile fly production facility to ensure it has the resources to push NWS back to the Darien Gap. USDA is working on these efforts in lockstep with border states – Arizona, New Mexico and Texas – as it will take a coordinated approach with federal, state and local partners to keep this pest at bay and out of the U.S.

USDA will continue to have personnel perform site visits throughout Mexico to ensure the Mexican government has adequate protocols and surveillance in place to combat this pest effectively and efficiently.

Click to enlarge.

(USDA)

Your Next Read: Protect Your Livestock: Signs of New World Screwworm

Breaking News: Mexican Ports to Reopen in Phases for Cattle Trade Starting July 7

Tue, 01 Jul 2025 19:28:22 GMT

Secretary of Agriculture Brooke Rollins announced today a risk-based phased port re-openings for cattle, bison and equine from Mexico beginning as early as July 7.

The announcement is following the extensive collaboration between USDA–Animal and Plant Health Inspection Service (APHIS) experts and their counterparts in Mexico to increase New World screwworm (NWS) surveillance, detection and eradication efforts. The port reopening timeline is:

Douglas, Ariz. – July 7
Columbus, N.M. – July 14
Santa Teresa, N.M. – July 21
Del Rio, Texas – Aug. 18
Laredo, Texas – Sept. 15

After each reopening, USDA will evaluate to ensure no adverse effects arise.

Progress Being Made to Stop Progress of NWS

According to USDA, progress has been made in several critical areas since the ports were closed on May 11 , including:

Resolution of challenges with conducting flights in Mexico that has allowed the team to consistently conduct sterile NWS fly dispersal seven days each week
Dispersal of more than 100 million flies each week
USDA sent five APHIS teams to visit, observe and gain a deeper understanding of Mexico’s NWS response. The APHIS teams were allowed the opportunity to share feedback.

USDA says there has not been a notable increase in reported NWS cases in Mexico, nor any northward movement of NWS over the past eight weeks.

“At USDA we are focused on fighting the New World screwworm’s advancement in Mexico. We have made good progress with our counterparts in Mexico to increase vital pest surveillance efforts and have boosted sterile fly dispersal efforts. These quick actions by the Trump Administration have improved the conditions to allow the phased reopening of select ports on the Southern Border to livestock trade,” Rollins says. “We are continuing our posture of increased vigilance and will not rest until we are sure this devastating pest will not harm American ranchers.”

The National Cattlemen’s Beef Association (NCBA) says it supports the plan to strategically reopen key ports of entry.

“NCBA and our state affiliates have spent months working with USDA to safeguard the U.S. cattle industry from the threat of New World screwworm. We strongly support USDA’s five-pronged plan to fight the screwworm, which includes bolstering sterile fly production by renovating a facility in Metapa, Mexico, and by building a new fly dispersal facility at Moore Air Base in south Texas,” says NCBA CEO Colin Woodall. “Today’s announcement to reopen key ports of entry is a measured, thoughtful approach by Secretary Rollins to allow some trade while also ensuring the American cattle industry is protected from this pest.”

While the Douglas, Ariz., port presents the lowest risk based upon the geography of Sonora and a long history of effective collaboration between APHIS and Sonora on animal health issues, USDA intends to reopen additional ports in New Mexico, and if it is proven safe to do so, in Texas, over the coming weeks. Additional port openings will be based on APHIS’ continuous reevaluation of the number of cases and potential northward movement of NWS, Mexico’s continued efforts to curb illegal animal movements, and implementation of further rigorous inspection and treatment protocols.

“We trust Secretary Rollins made this decision with the latest information from USDA staff in Mexico, and we know she will continue holding her counterparts in the Mexican government accountable for eradicating screwworm,” Woodall adds. “NCBA and our state affiliate partners will continue working with USDA and key members of Congress to protect the United States from New World screwworm.”

Continuing Efforts

USDA is working with Mexico’s National Department of Health, Food Safety and Food Quality (SENASICA) on outreach, education and training efforts to raise awareness and put producers on high alert about NWS, along with utilizing their well-functioning central laboratory for diagnosing cases. While Mexico has made great progress on animal movement controls and surveillance, additional progress will help ensure the remaining U.S. ports reopen. Enhanced animal movement controls to stem illegal animal movements from the south, along with robust surveillance and NWS risk mitigations beyond check points will be critical in pushing back NWS. APHIS technical teams continue to engage with SENASICA to improve the overall NWS posture in Mexico and implement the rigorous steps needed to keep this pest away from our border.

Mexico will also begin renovation of its sterile fruit fly facility in Metapa this week, with renovation expected to be completed by July 2026. Renovation of this facility will allow for production of between 60-100 million sterile NWS flies each week. This is a critical step towards reaching the goal of producing the estimated 400-500 million flies each week needed to re-establish the NWS barrier at the Darien Gap.

Only cattle and bison, born and raised in Sonora or Chihuahua, or that are treated according to cattle and bison NWS protocol when entering these states, will be eligible for import. See Importing Live Cattle and Bison From Mexico to the United States for more information on cattle and bison import requirements.

In addition, reopening the Del Rio (Aug. 18) and Colombia Bridge (Sept.15) ports will be contingent on Coahuila and Nuevo Leon adopting the same NWS protocols for cattle and bison as those now required of Sonora and Chihuahua for cattle or bison entering those states.

Equine may import from anywhere in Mexico. They require a seven-day quarantine at the port of entry and must import in accordance with the equine NWS protocol and other requirements detailed on USDA APHIS | Import Horses from Mexico webpage . Approved equine facilities are available at the Santa Teresa, N.M., port and will be available for entry of horses when that port is reopened.

In May 2025, USDA suspended imports of live cattle, bison, and equines from Mexico into the U.S. due to the continued and rapid northward spread of NWS. During the weeks of June 2 and June 16, teams of APHIS experts conducted robust onsite assessments of Mexico’s NWS response efforts to fully reassess the risk of NWS incursions to the U.S. posed by importation of Mexican cattle across our southern border.

Your Next Read: Open Heifers Explained: What You Need to Consider to Increase Preg Rates

Rollins Rolls Out 5-Point Plan to Contain New World Screwworm

Wed, 18 Jun 2025 19:02:02 GMT

Today Secretary of Agriculture Brooke Rollins announced a five-pronged plan to combat New World screwworm (NWS) – a pest that would devastate ranchers if it made its way across the border.

Rollins made her announcement at the Moore Air Base facility near Edinburg, Texas. Moore was instrumental as a sterile fly production lab to rid the U.S. of NWS in the 1960s and 1970s. Hundreds of millions of flies were reared, sterilized with radiation and dropped from aircraft to eliminate the parasitic pest that preyed upon wildlife and livestock. According to a USDA spokesperson it will cost an estimated $8.5 million to get the base up and running as a distribution facility.

U.S. Secretary of Agriculture Brooke Rollins this morning launched an $8.5 million sterile New World screwworm (NWS) fly dispersal facility in South Texas and announced a plan to enhance USDA’s already robust ability to detect, control, and eliminate this pest.

(U.S. Department of Agriculture)

According to the Texas Wildlife Association , there are currently more than 1,800 cases of livestock infestation in southern Mexico. The flies are moving north and are currently 600 miles from the south Texas border.

“We have defeated the screwworm before, and we will do it again,” Rollins says.

Here in McAllen, TX to announce a BOLD 5-pronged plan to combat the deadly parasite called New World Screwworm – which would devastate ranchers if it made its way across the border.

We are protecting producers, strengthening biosecurity, and ALWAYS standing up for American… pic.twitter.com/VHOlqZyZ9a
— Secretary Brooke Rollins (@SecRollins) June 18, 2025

Her five-pronged plan to combat NWS includes:

Stop the pest from spreading in Mexico.
Rollins plans to continue partnering with her Mexican counterparts and using sterile insect technology to stop the spread. This includes investing $21 million to produce up to 100 million additional sterile flies weekly.

“We are first enhancing the international sterile fly production and investing $21 million in renovation of an existing fly facility in southern Mexico, which will provide up to 100 million additional sterile flies every week to stop the spread,” Rollins says.

Currently, the only sterile fly facility is located in Panama. It’s jointly run by the Panamanian government and the U.S. government. USDA had previously announced its plan to invest in the retrofiting of a fruit fly facility in Chiapas, Mexico, to produce additional sterile flies.

According to the National Cattlemen’s Beef Association , “The Chiapas facility produces about 117 million flies per week, but to form an effective barrier along the U.S. southern border, we need upward of 300 million sterile flies per week.”
Protect the U.S. at all costs.
Rollins temporarily closed the southern border to live animal imports and intercepting illegally introduced livestock. USDA is working closely with Mexico to improve surveillance.

“I do believe we have met and moved into a new era of productive partnership —perhaps better than ever before — with our Mexican counterparts,” Rollins says.
Maximize our readiness.
This will be achieved by partnering with state animal health officials to update emergency management plans and stockpile therapeutics for ranchers.
Take the fight to the screwworm.
The domestic fight includes establishing a sterile fly dispersal facility at Moore Air Base. Rollins says they are exploring options for building a domestic production facility at Moore that could produce up to 300 million sterile flies per week.

“We can’t get a brand new facility up and running probably before two or three years. So, that’s why we’ve got to really focus on the today,” Rollins explains.

She also announced USDA will be hosting listening sessions in affected areas starting next week.
Innovate Our Way to Eradication.
Leverage the sound science including USDA’s Agriculture Research Service (ARS) to continue to quickly develop novel treatments, preventatives and response strategies. Rollins says this includes working with land grant universities in Texas, Arizona and New Mexico. She listed these key strategies during the press conference:
- Develop better fly traps and lures
- Provide local training
- Improve surveillance methods
- Create new response strategies

Nearly 80 lawmakers led by House Ag Committee Chair Glenn “GT” Thompson (R-Pa.) sent a bipartisan letter on Tuesday to Rollins urging immediate action and promising congressional support for the significant funding required.

The letter included this message, “When looking solely at the historical impact of NWS in Texas, USDA’s Animal and Plant Health Inspection Service (APHIS) estimates a contemporary outbreak would cost producers $732 million per year and the Texas economy a loss of $1.8 billion. Extrapolating those results to the states within the historic range of NWS pre-eradication, a contemporary outbreak of NWS could cost producers $4.3 billion per year and cause a total economic loss of more than $10.6 billion. This does not account for the possible expansion of NWS beyond the historic range.”

U.S. Congresswoman Monica De La Cruz (R-Texas) was at the announcement and recently shared in a letter to Rollins these key advantages of the Moore Air Base location:

Border proximity: The proximity to the border with Mexico is crucial for effective monitoring and control of potential incursions of invasive fly species. A facility in this region would allow for rapid response and containment, minimizing the spread of infestations into the U.S.
Existing agricultural infrastructure: The region boasts a robust agricultural sector with established infrastructure and expertise in livestock management. This existing framework would facilitate efficient integration of the sterile fly facility and streamline its operations. Additionally, Moore Air Base has operations runways equipped to distribute sterile flies.
Strategic location: Moore Air Base offers a central location for distribution of sterile flies to other areas in the southern U.S., if such a need arises. Additionally, this base was the site of a facility used in the 1960s to successfully combat NWS.
Economic impact: The establishment of such a facility would provide valuable economic opportunities for the region by generating jobs and stimulating local economies.

U.S. Congressman Ronny Jackson (R-Texas) summarized at the announcement, “This is important to the whole country. We are going to be aggressive about this, and we are going to make sure that we don’t get screwed by the screwworm.”

Your Next Read: Urgency in Action: We Must Eradicate New World Screwworm

1,500-lb. Carcasses the New Normal, Not the Exception

Wed, 18 Jun 2025 16:26:38 GMT

Today the entire beef industry — from producers to processors — is economically incentivized to produce heavier animals. Ty Lawrence, West Texas A&M University animal science professor and director of the BCRC, predicts that carcass weights will continue to increase, potentially reaching 1,500 lb. in the near future.

Lawrence was a keynote speaker during the 2025 Beef Improvement Federation (BIF) Symposium in Amarillo last week. He says the industry has already seen harvests of cattle approaching that weight, with some producers currently feeding cattle up to 2,300 lb.

“We can feed cattle today to much bigger weights and be more profitable than you’ve ever considered,” Lawrence says.

BIF attendee and Kansas beef producer Joe Epperly from Wamego, Kan., summarizes, “The most hard-hitting comment at BIF was Lawrence’s 1,500-lb. carcass prediction by the end of his career. The implications of that to genetic selection, cost of production and cow size are far ranging. It will be a challenge for producers in every segment to meet.”

More than 400 beef producers, breed association leaders and industry professionals participated in two and a half days of educational programming focused on beef industry profitability and sustainability.

Tuesday, June 10, the event kicked off with the Young Producer Symposium. Wednesday’s general session focused on “Beef Industry Profitability: Conflicting market signals and profit drivers in the beef value chain.” Thursday’s general session theme was “Sustainability: Improving our product through selection, applications of technology and data integration.”

Wednesday and Thursday afternoon technical breakout sessions focused on a range of beef-production and genetic-improvement topics.

Bradley Wolter, a symposium attendee from Aviston, Ill., says, “Larger carcasses will be a critical part of bridging the supply gap in the near term. Identifying genetic association with late-term mortality and morbidity requires further research and coordination on the part of breeding entities.”

He says the chasm remains between exponentially larger finished carcasses that optimize fixed packer costs verses a target of smaller cows for biological optimum on the ranch.

“More collaborative, holistic data analysis with integrated research is needed to avoid industry sub-optimization and ensure competitiveness on the world stage,” Wolter summarizes.

Scott Greiner, Virginia Tech professor and Extension animal scientist, agrees with Epperly and Walter saying the message that resonated with many in attendance was the continued emphasis on increasing carcass weights by the feedlot and packing sectors, and the impact it will have at the cow-calf sector as it relates to cow size and production costs.

“This trend is not new, but I think the way things were conveyed by several speakers in terms of the economics and market signals, sure seems like bigger is what will continue to be a primary emphasis,” Greiner says.

Ken Odde, 2025/26 BIF vice president from South Dakota, says: “Two of the real questions about feeding cattle this long [to 1500-lb carcass weight] is what happens to the carcass traits as you do that? What happens to feed efficiency?”

One of the sessions that stood out to Odde during the symposium was a presentation on a project at South Dakota State University in the Advancements in End Product Improvement breakout session — “Extended days on feed: Influences on growth performance, efficiency and carcass characteristics of steers and heifers of different proportions of Angus and Limousin genetics.”

Is the U.S. Behind?

“From conversations in the hallway, I learned that the U.S. beef industry is behind on methane research, and if we are going to compete in the global marketplace, we need to get a move on,” Epperly says. “Australian Angus will release a methane research EPD in 2025, and we have barely enough data in the U.S. to see differences. That Australian data includes a lot of American bulls, so we will have data whether some American breeders like it or not. The optics for some are unfavorable, but whatever we can do to keep the doors open for our product the better off we will be.”

Likewise, symposium speakers referenced the Brazilian beef industry and how it is poised for continued success and rapid growth given its bountiful resources, not the least of which is its people.

“You see it not only in its scaled adoption of AI, but through the numerous young geneticists who make up the audience,” Walter says. “The U.S. industry needs to continue to invest in its genetic improvement through both public and private partnerships to maintain a position of world leadership.”

Young Producer Focus

“The Young Producer Symposium opened with a message about ‘Standing on the shoulders of giants,’” says Elizabeth Dressler, a graduate student who attended the symposium. “This resonated with me as I thought about all the research and progress the beef industry has made over the years. I thought it was a great way to open the conference by paying respect to the work that has been done in the past, as we look into the future the rest of the conference.”

Wolter adds there’s an excitement among young people in the beef industry.

“These young leaders are creatively engaged with our consumers unlike the previous generation,” he says. “I believe that will only create more demand and opportunities for an industry despite some questions and uncertainties with how cattle interact with their environment.”

Preempting African Swine Fever in Texas with Research

Mon, 09 Dec 2024 19:02:00 GMT

By Gabe Saldana

As feral hog populations increase in Texas and the U.S., they create desirable conditions for disease-carrying ticks and increase the risk for an outbreak of African swine fever virus, ASFV.

To ensure the devastating ASFV stays out of Texas and the Southern U.S., a multi-institution research project led by Texas A&M AgriLife Research will assess the potential, or vector competency, of a southern Ornithodoros turicata tick to transmit the disease.

The nearly $1.5 million project is supported by the U.S. Department of Homeland Security Science and Technology Directorate through Cross-Border Threat Screening and Supply Chain Defense, CBTS, a DHS Center of Excellence within AgriLife Research.

Results from the project will fill critical knowledge gaps in the vector competency of ticks in the U.S. It will be an early key step toward research-based solutions that keep Texas and the Southern U.S. free of ASFV.

Assessing tick vector competency for ASFV transmission in Texas
“These ticks are in several southern states and are common in Texas,” said Meriam Saleh, Ph.D., clinical assistant professor in the Texas A&M College of Veterinary Medicine and Biomedical Sciences. Saleh is the project’s principal investigator.

“Laboratory studies using a subspecies of these ticks, which originated in Florida, demonstrated high vector competency for ASFV to pigs,” she said. “Our research aims to confirm whether the Texas ticks carry the same ability to transmit the disease.”

Dee Ellis, DVM, AgriLife Research veterinarian within the Texas A&M College of Agriculture and Life Sciences Department of Entomology., and Scott Kenney, Ph.D., of Ohio State University, join Saleh as co-principal investigators.

The team will evaluate the biology and transmissibility of different ASFV strains and genotypes in ticks. They will determine the ability of other species to host or spread ASFV from ticks in the U.S.

Preempting an outbreak with research
African swine fever, as its name suggests, is a tick-borne DNA virus originating in Africa, where Ornithodoros moubata ticks persist in a continuous cycle with wild warthogs.

In Texas, unique challenges come from a host of issues: the presence of potential tick vectors, the expanding feral swine population, expansive suitable habitat for ticks and feral swine, commercial swine operations and the U.S. border with Mexico among others.

The USDA Animal and Plant Health Inspection Service estimates that an ASFV outbreak in the U.S. would devastate the U.S. pork industry with a 50% drop in hog prices, a halt in pork and pork product exports, as well as significant job losses and culling of the animals.

In Texas, according to the Texas Pork Producers Association, feral pigs outnumber domestic swine at least 3-to-1.

Adult ticks have been documented to live for years between feedings. Several species of Ornithodoros ticks in North America have demonstrated African swine fever transmission to swine in laboratory settings.

“Leading-edge discoveries and innovation will be the keys to staying ahead of ASFV for Texas and the Southern U.S.,” said Heather Manley Lillibridge, Ph.D., executive director of CBTS. “Collaborations across multiple institutions provide us with the resources and expertise for continued success.”

Your Next Read: The Pork Industry Responds to EPA’s Rodenticide Strategy

Texas Rancher Contracted Anthrax from Lamb

Tue, 11 Jun 2024 14:31:11 GMT

The U.S. Centers for Disease Control reported that a Texas rancher contracted an anthrax infection after butchering a lamb he found dead on his property. The incident dates back to December as the rancher first contacted his doctor about infected skin wounds on New Year’s Day.

CDC researchers said that on Jan. 4, the rancher, a man in his 50s was hospitalized with a high fever, high white blood cell count, fever, “scabrous lesion on his right wrist and a swollen right arm complete with blistered lesions.”

According to the CDC, the rancher found the dead lamb, butchered it, seasoned the meat and cooked it for dinner where four people ate the lamb.

Tests on the rancher’s serum done by the CDC confirmed exposure to the bacteria that causes anthrax. Plus, the CDC found the same bacteria in the DNA of the cooked lamb’s meat, which was tested after being stored frozen.

“The patient and another person seasoned and cooked the meat; the well-cooked meat was then consumed at a meal with three other persons,” investigators with the CDC said, but only the man who butchered the lamb became ill.

That suggests direct contact between the deceased animal and the man’s skin as the mode of transmission. In this case and prior human anthrax cases recorded in the same area of Texas, “the patients reported direct skin exposure to animal carcasses, emphasizing the importance of avoiding processing carcasses of animals that unexpectedly die of unknown causes in this region regardless of the season,” the investigators said.

The rancher recovered from his illness and was discharged Jan. 12. None of the other dinner guests showed symptoms of illness. Even though tests of the leftover cooked and frozen meat did not show up as positive, the CDC says that there is no safe way to prepare meat that died from anthrax.

USNews.com reports the ranch where the lamb was found is near an area called the “Anthrax Triangle.”

Images From the Smokehouse Creek Fire

Thu, 26 Sep 2024 20:12:22 GMT

Wildfires that ripped across the Texas Panhandle left in their wake destroyed homes, blackened earth, downed power lines and wandering livestock. But also, an outpouring of support that arrived by the truckloads in the form of hay, feed and fencing materials in addition to warehouses full of supplies for families who lost their homes. Personnel from the Texas A&M AgriLife Extension Service and the Texas A&M Forest Service are on the front lines with volunteers to serve and support in the aftermath of the largest wildfire in Texas history.

The Smokehouse Creek Fire, which started in Hutchinson County, burned a total of 1,075,000 acres and has been declared as the largest in Texas history. And, it was only one of multiple fires that threatened homes and livelihoods in the past week.

Wildfire Battles Continue Over Weekend for Texas, Oklahoma

Fri, 27 Sep 2024 15:30:27 GMT

After burning for more than six days, the Smokehouse Creek Fire in the Texas Panhandle and western Oklahoma was only 15% contained Sunday morning, according to the Texas A&M Forest Service.

Now officially the largest wildfire in Texas history, the Smokehouse Creek Fire had burned 1.1 million acres. Texas Governor Greg Abbott said 400 to 500 structures had burned and livestock losses were in the thousands. He said he would be asking for federal assistance and he has declared 60 counties disaster areas.

Two people were confirmed dead as a result of the fire. An 83-year-old grandmother was discovered in the remains of her burned home, and an Amarillo woman in her 40s died when she exited her truck while driving in the city of Canadian.

The Windy Deuce Fire in Moore County, which covers more than 144,000 acres, was 55% contained on Sunday. The Grape Vine Creek fire, at 34,800 acres, was 60% contained. The Magenta Fire in Oldham County, spanning approximately 3,300 acres, was 85% contained. The 2,000-acre 687 Reamer Fire was 10% contained.

Much of the area burned in the Panhandle region is rolling sand hills and the Texas Department of Transporation is now preparing for blowing dust and that can drift onto roads forcing closure.

Oklahoma officials reported at least 14 fires were burning across more than 319,000 acres, much of that spillover from the Smokehouse Creek Fire. The National Weather Service issued a Flag warning—indicating dangerously dry and windy weather—until 9 p.m. Sunday for Oklahoma and the Texas Panhandle. A cold front was expected to move into the area on Monday and could bring some relief.

Additional information and resources are continually updated and available online at www.tscra.org/disaster-relief-fund .

The Oklahoma Cattlemen’s Foundation Disaster Relief Fund here.

Related stories:

Smokehouse Creek Fire is Officially the Largest in Texas History

Wildfires Raging in Texas, Oklahoma Panhandle Region Threaten Residents and Livestock

Smokehouse Creek Fire is Officially the Largest in Texas History

Thu, 29 Feb 2024 20:17:22 GMT

The devastating Smokehouse Creek Fire in Hutchinson County is officially the largest fire in Texas history, now covering an estimated 1,075,000 acres, according to the Texas A&M Forest Service.

As of Thursday morning, the fire was only 3% contained. The Smokehouse Creek Fire eclipsed the East Amarillo Complex Fire in 2006, which was measured at 907,245 acres, and previously held the title of largest fire in Texas history.

(Farm Journal)

Fire crews are working hard to combat the enormous wildfire at Smokehouse Creek, before heightened winds Friday and into the weekend threaten to make the job more difficult.

(Farm Journal)

The fire has cause widespread destruction in northern Texas, where 83-year-old Joyce Blankenship was killed by the inferno in Hutchinson County, her family said.

• In addition to the mammoth Smokehouse Creek Fire, the Windy Deuce Fire in Texas has torched 142,000 acres and was 30% contained as of early Thursday morning.

• The Grape Vine Creek Fire has charred 30,000 acres and is 60% contained.

• The Magenta Fire has seared 2,500 acres and is 65% contained.

• The 687 Reamer Fire has burned more than 2,000 acres and is 10% contained.

• Texas Gov. Greg Abbott authorized additional state resources to fight the blazes, including 94 firefighting personnel, 33 fire engines and six air tankers.

Additional information and resources are continually updated and available online at www.tscra.org/disaster-relief-fund .

The Oklahoma Cattlemen’s Foundation Disaster Relief Fund here.

(Farm Journal)

Related stories:

Wildfires Raging in Texas, Oklahoma Panhandle Region Threaten Residents and Livestock

Hay, Feed, Fencing Supplies Needed to Support Panhandle Wildfire Victims

Wildfires Raging in Texas, Oklahoma Panhandle Region Threaten Residents and Livestock

Fri, 27 Sep 2024 16:11:22 GMT

Wildfires have burned almost totally out of control since Monday afternoon in the Texas and Oklahoma panhandle regions, threatening ranchers’ homes, livestock and equipment. The Smokehouse Creek Fire had traveled 45 miles and consumed 850,000 acres by mid-day on Wednesday, making it the second-largest fire in Texas state history. (The AP reported the fire had consumed 1,300 square miles.)

Additional information and resources are continually updated and available online at www.tscra.org/disaster-relief-fund .

The Oklahoma Cattlemen’s Foundation Disaster Relief Fund here.

Officials were still assessing the damage, but homes had burned in at least two Texas towns and one Hemphill County official said “homes have burned in almost every direction.”

The Texas & Southwestern Cattle Raisers Association is urging donors to give to the TSCRA Disaster Relief Fund to assist those affected by the fires.

“A fire is one of the most tragic events that can impact ranches, and a natural disaster such as the widespread wildfires in Texas and Oklahoma can result in financial hardships and deep impacts to our ranching communities,” said TSCRA President Arthur Uhl. “Texas & Southwestern Cattle Raisers Association is here to help through means of financial assistance and we’re encouraging those who can to donate to the TSCRA Disaster Relief Fund.”

The TSCRA Disaster Relief Fund is a 501(c)(3) nonprofit that provides support for cattle raisers in Texas and Oklahoma who are victims of a natural disaster. All contributions to the TSCRA Disaster Relief Fund are tax deductible.

For more information, including how to donate and how to apply for funding visit tscra.org/disaster-relief-fund/ or contact TSCRA at 800-242-7820. Additional resources for victims impacted by these wildfires are also available tscra.org/disaster-relief-fund/ .

On Wednesday morning, officials said that fire behavior had moderated with decreased winds but that fires were still actively burning. While the Smokehouse Creek Fire was the largest, other active wildfires in the region include the Windy Deuce Fire, which has burned 40,000 acres and is 20% contained, and the Grape Vine Creek Fire, which has burned 30,000 acres and is now 60% contained.

In Oklahoma active wildfires include the Slapout Fire in Beaver County, 77,000 acres burned; the Catesby Fire in Ellis County, 30,000 acres burned; the E1980 Rd Fire in Choctaw County, 5,500 acres burned; and the Sand Creek Fire, 2,385 acres burned.

For those looking to donate hay, fencing and feed to cattle raisers impacted by wildfire, the below drop points have been identified in the Texas Panhandle:

Hemphill County Livestock Supply Point

100 Hackberry Street

Canadian, Texas 79014

(806) 323-9114

Pampa Bull Barn / Top O’ Texas Fairgrounds Livestock Supply Point

301 Bull Barn Drive

Pampa, Texas 79065

Curtis Preston: (806) 946-7467

Additional information and resources are continually updated and available online at www.tscra.org/disaster-relief-fund .

Mathis Selected to Lead Texas A&M Department of Animal Science

Sun, 13 Aug 2023 12:22:35 GMT

Clay Mathis, Ph.D., has been named the new head of the Department of Animal Science , making a return to the Texas A&M College of Agriculture and Life Sciences , beginning Oct. 1.

Mathis, a native of New Braunfels, is no stranger to the department as he earned both his bachelor’s in animal science in 1993 and his master’s in physiology of reproduction in 1995 at Texas A&M University. He earned his doctorate in ruminant nutrition in 1998 at Kansas State University.

He is returning to lead the team of faculty and staff to ensure the Department of Animal Science remains one of the most impactful animal science bodies of students and faculty in the world, internationally renowned for excellence in animal science teaching, research and extension.

“We are very excited to bring Dr. Mathis and his skillset as an educator, researcher and administrator to the Department of Animal Science,” said Jeffrey W. Savell, Ph.D., vice chancellor and dean for Agriculture and Life Sciences. “His leadership will be crucial as Texas A&M continues as the preeminent leader in animal science education and research, nationally and internationally.”

A vision of international leadership

Mathis said he looks forward to working with the department’s world-class faculty to ensure that Texas A&M University is home to the most modern animal science department in the world.

“I’m excited about the opportunity for the department to be even more impactful as we look into the future,” Mathis said.

Mathis said his vision for the department includes being the first choice of prospective undergraduate and graduate animal science students seeking the best animal science education, and of employers seeking the brightest and best-prepared animal science graduates.

“Also, we must be known as the nation’s pioneer in basic and applied animal science research and the most trusted, valid source of information for livestock producers and policymakers,” he said.

As department head, Mathis said he knows one of the greatest keys to achieving success for the department is the empowerment of the faculty. In what he considers to be one of the most important parts of his role, he plans to lead, inspire, recruit and support departmental faculty and staff as they work every day to further the mission and vision of Texas A&M University and Texas A&M AgriLife .

“Excellence in teaching, research and extension can only be achieved when faculty and staff are engaged, equipped, aligned and supported,” he said. “I have learned the importance of, and found success by, cultivating a culture of high but reasonable expectations, honest feedback, life balance, mutual respect and genuine trust, which has yielded a very high level of faculty and staff team commitment and extraordinary team results.”

From specialist, to professor, to administrator

Since 2010, Mathis has served as a professor and the Robert J. Kleberg Jr. and Helen C. Kleberg Endowed Chair and director at the King Ranch Institute for Ranch Management at Texas A&M University-Kingsville. Prior to that, he spent 12 years at New Mexico State University as an Extension livestock specialist.

Mathis’ research and Extension program at New Mexico State University centered on management practices that improve post-weaning health among beef calves originating in the Southwest, looking at everything from the forages and byproduct feedstuffs to vaccinations, weaning stress and preconditioning effects on lifetime performance. More recently, his focus has been on ranching systems management, with particular emphasis on factors driving success in the cow-calf sector of the business.

At the King Ranch Institute for Ranch Management, he expanded the institute’s mission to include research, hiring the first research scientist and establishing a doctoral training program as well as two endowed faculty positions.

While there, he also maintained and developed the curriculum for the Master of Science in Ranch Management program, which graduated 39 students during his tenure. These students currently manage over 100,000 cows and 770 horses on 7.5 million acres of ranchland and wildlife habitat across 13 states.

He also led his graduate students and faculty to complete more than 120 service-learning projects providing production and business management recommendations to more than 50 partnering ranches in North and South America.

Mathis is vice-chair of the National Cattlemen’s Beef Association Beef Quality Assurance Advisory Group and a co-chair of the University of Nebraska-Lincoln Beef Innovations Hub External Advisory Board. In addition, he was a charter member of the board of directors for the U.S. Roundtable for Sustainable Beef and has served on numerous committees within the American Society of Animal Science.

He is also a member of the Texas and Southwestern Cattle Raisers Association, American Quarter Horse Association, Cattle-Fax, the American Registry of Professional Animal Scientists, the Global Roundtable for Sustainable Beef and the Texas Wildlife Association.

USDA Inspector Charged With Accepting Bribes At Texas Border

Wed, 09 Mar 2022 17:16:28 GMT

A U.S. Department of Agriculture employee was paid to allow tick infested and diseased cattle to enter the country, according to an indictment filed in a Laredo federal court.

Authorities arrested Roberto Adams in Laredo, Tex., on March 3, 2022, charging him with bribery of a public official. Court documents identify Adams as a USDA Lead Animal Health Technician.

The indictment states that Adams accepted bribes from about March 2019 to about November 2021, in the Southern District of Texas, for acts in violation of his official duties, specifically for allowing tick infested and diseased cattle to enter the U.S. without inspection or quarantine.

Last year the U.S. imported 1.128 million feeder cattle from Mexico. That was a decline of 21% from 2020 when 1.441 million were imported.

If convicted, Adams faces up to 15 years in federal prison and a maximum fine of $250,000.

The Federal Bureau of Investigation is reviewing the case.

Cupid Shuffle Is A Milestone Champion

Thu, 10 Dec 2020 16:32:09 GMT

The Grand Champion steer at this year’s Fort Worth Stock Show sold for a record $300,000. But the legacy of the steer named Cupid Shuffle may last for decades and his worth to a breed may be invaluable.

When Ryder Day and Lauren Holly Thomas led their steers into Will Rogers Coliseum they had no idea they were about to make show ring history. Judge Chris Mullinix picked Day’s Polled Hereford steer Grand Champion and Thomas’ Horned Hereford steer Reserve, marking the first time in, well, maybe a couple generations that two Herefords were paired in the winner’s circle.

Choosing the two Herefords also brought back memories of Conoco, the Charolais X Angus steer that was the first crossbred to win a major show some 51 years ago. Kansas State University’s Dr. Don Good selected Conoco as the Grand Champion at the 1969 North American International Livestock Exhibition in Chicago, an event that has long been considered a watershed moment in cattle breeding. With his choice, Good signaled that crossbred cattle could compete in the show ring and on the rail.

Crossbred steers have held dominance in the winner’s circle at the Fort Worth Stock Show since 1982. That was the last time a Hereford steer was selected as Grand Champion – until Mullinix slapped 12-year-old Day’s steer on February 7, 2020. It was extra special for the Day family, who raised the steer on their ranch near Lubbock.

Judge Chris Mullinix, Kansas State University

“We’re multi-generational cattle raisers on both sides of Ryder’s family,” his mom, Katie Jo, said. “We’re really proud of our show cattle herds and our Hereford herd, in particular.”

There was also a connection between the Day’s and the couple who purchased Cupid Shuffle, Gary and Kathy Knox Buchholz. In 1989, Katie Jo showed a Hereford steer at the Fort Worth Stock Show that was bred by Kathy Knox Buchholz’ father, George “Tee” Knox.

But there’s another link in this story – one that connects Cupid Shuffle with Conoco. Chris Mullinix, a professor and the livestock judging coach at Kansas State, occupies the same position Don Good held when he chose Conoco those many years ago. And, Mullinix’s wife Elissa is the late Dr. Good’s grand-niece.

Despite being a well-respected judge in his own right, Mullinix admits there were a few butterflies in his stomach as he prepared to select his winners in Fort Worth.

“It was a nervous moment for me,” Mullinix says. “I knew in my heart exactly what I needed to do and what was right. And yet, when you’re in that moment and you know this is something that no one sitting in that arena has seen… Finally, I just relaxed and thought, I know what I was brought here to do – pick the best steer. And so I did.”

Ryder Day, 12, FFA member from Meadow, Texas

While he recognizes the significance of his choice in Fort Worth, Mullinix is humbled by any comparisons to Dr. Good, who Mullinix says “is the single most influential person that ever walked through this building,” referring to K-State’s Weber Hall.

“I don’t know that anything I will ever do is as significant as that milestone moment when Dr. Good selected Conoco,” he says. “There is a level of significance, and maybe a reminder that what Dr. Good showed us was the advantages of crossbreeding when most people in the livestock business thought it was taboo.”

Texas

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Surveillance, Monitoring and Reporting Continues

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What Are Some Key Concerns if NWS Crosses the Border?

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Monitoring for and Limiting EHV-1 Infection

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Trade Mission While In Mexico

Winter: The Secret to Slowing the Spread of Screwworm

The Winter Win

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Rainfall and Monsoon Factors

New Technology to Combat New World Screwworm

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Mexico’s Response To New World Screwworm

U.S.-Mexico Border Remains Closed to Cattle Trade

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Texas A&M Researchers Study Diet’s Impact On Salmonella Prevalence In Cattle

Taking A New Approach

Continuing The Investigation

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What is Swormlure?

Breaking: Mexican Border Closed Again as New World Screwworm Comes Within 370 Miles of the U.S.

Breaking News: Mexican Ports to Reopen in Phases for Cattle Trade Starting July 7

Progress Being Made to Stop Progress of NWS

Continuing Efforts

Rollins Rolls Out 5-Point Plan to Contain New World Screwworm

1,500-lb. Carcasses the New Normal, Not the Exception

Is the U.S. Behind?

Young Producer Focus

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Preempting African Swine Fever in Texas with Research

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Wildfire Battles Continue Over Weekend for Texas, Oklahoma

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Wildfires Raging in Texas, Oklahoma Panhandle Region Threaten Residents and Livestock

Mathis Selected to Lead Texas A&M Department of Animal Science

A vision of international leadership

From specialist, to professor, to administrator

USDA Inspector Charged With Accepting Bribes At Texas Border

Cupid Shuffle Is A Milestone Champion