New World Screwworm

Cargill’s commitment to keep plants open helps preserve competition as Tyson removes capacity amid historically tight cattle supplies.
Expanded aerial capacity strengthens the U.S.–Mexico buffer against screwworm, providing cattle producers with stronger protection heading into winter and reducing risk to herds along the southern tier.
The facility will increase the range of sterile fly release and bolster preparedness for New World Screwworm.
Tight cattle supplies keep prices high for ranchers, but policy shifts, export barriers, and packer losses signal a volatile road ahead for the beef supply chain.
Texas Cattle Feeders Association Chairman Robby Kirkland explains how the ongoing U.S.-Mexico border closure impacts feed yards that rely on Mexican cattle due to the New World Screwworm.
The Sheinbaum–Rollins meeting signals progress, but the focus remains on fully containing screwworm before cross-border movement resumes.
An import lag for ground beef will likely look different than last year’s egg shortage. The difference comes down to biosecurity and market flexibility.
Texas A&M livestock economist Dr. David Anderson joins Tony St. James to discuss the geopolitical tensions and U.S.-Mexico border closure that are leading to sharp swings in the cattle market.
Expect firm calf and fed-cattle prices — pair selective heifer retention with prudent hedging and liquidity to bridge rebuilding costs.
Peel says Mexico has a much greater capability to expand its beef industry than it did 20 or 30 years ago in terms of its feeding and packing infrastructure.
“USDA can no longer keep wasting its time and personnel to deploy Commissioner Miller’s infamous traps, which USDA has deployed, tested, and has proven ineffective.”
“Good flies? Is that like a good fire ant?” Miller said. “I don’t know what a good fly is. I don’t know if they’re afraid to kill house flies or stable flies, but I’m ready to kill the screwworm fly.”
Large animal veterinarian Dr. Rosalyn Biggs with Oklahoma State University warns producers may not be prepared for the real threat of New World Screwworm.
Mexico’s tougher, two-step treatment and added checkpoints are catching cases before they can spread—good news for producers near the border.
Fewer placements and historically low marketings point to tighter cattle supplies ahead, with Nebraska and Kansas gaining ground as Texas feedlots face supply pressure and the threat of New World Screwworm.
What is it like working cattle with an outbreak of New World Screwworm so close to home? Wayne Cockrell, with the Texas and Southwestern Cattle Raisers Association, joined us on Wednesday to discuss.
“We believe that it is just a matter of days or weeks... before we see New World screwworm in Texas.”
With the latest detection just across the border, animal health officials on both sides are intensifying efforts to contain the outbreak before it spreads further north.
“Continue to help us push the New World screwworm back to the Darién Gap and hopefully towards eradication.”