Why Beef Prices Remain So High — and What the New Cattle Threat Has to Do With It
On June 3, a veterinarian examining a three-week-old calf near La Pryor, Texas, discovered larvae feeding inside an open wound, marking the first confirmed U.S. case of New World screwworm in six decades. Five more cases appeared within days. By late July, 42 infections had been recorded nationwide, 41 of them in Texas, where the cattle industry is valued at roughly $15 billion.
The parasite is as destructive as its name suggests. Unlike many livestock flies, which feed mainly on dead tissue, Cochliomyia hominivorax lays eggs around wounds and sends its larvae into healthy flesh. The United States eliminated the species in 1966 after a decades-long campaign that released sterile males into the wild until the population could no longer reproduce. Its return is a serious threat to ranchers and a setback for a major agricultural success.
Its timing has also made it an obvious suspect in the cost of beef. Ground beef averaged $6.89 a pound in July, after rising more than 20% in the twelve months through January, while retail beef prices have repeatedly reached records. Put an expensive food category beside a new cattle threat and the connection seems almost automatic.
The cattle market, however, does not support that explanation. Farm Progress reported that cattle and beef markets remained largely unfazed. The Dallas Fed reached a similar conclusion, finding that herd contraction and strong consumer demand have been much more important in determining prices than the parasite's return. Forty-two infected animals represent a major veterinary concern, but against a national herd of about 86 million, they are negligible on the supply side.
The more important number goes back years. On January 1, the U.S. cattle inventory was 86.2 million head, the lowest level since 1951. The beef-cow population fell about 1% to 27.6 million, extending a seven-year decline that began in 2019. The shortage was not created by infected animals. It was created because fewer animals were being bred.
That is why increasing supply takes so long. A rancher seeking to expand the herd must retain heifers — young females that would otherwise enter the beef market. Each one kept for breeding reduces meat available today in return for additional calves much later. The strange consequence is that the first step toward ending a shortage can make it worse.
The biological timetable leaves little room for shortcuts. A cow carries a calf for roughly nine months, and that calf typically needs another 18 months or more to reach slaughter weight. Once a rancher decides to rebuild, roughly two and a half years can pass before that decision produces additional beef. That is why the USDA does not expect meaningful herd growth before 2027 at the earliest, while wholesale prices are still projected to rise another 6.9% this year.
Ranchers have plenty of reasons to hesitate. Years of drought reduced pasture and forced earlier sales, while fuel, fertilizer, machinery and financing all became more expensive. Producers are also aging, and farmland increasingly competes with uses that generate returns more quickly. High cattle prices add another contradiction: selling an animal today can be more attractive than keeping her to produce calves, even though widespread selling prolongs the shortage.
The parasite does affect the market, but primarily through trade. In May 2025, the United States halted imports of live Mexican cattle because of the threat moving north, removing more than 1.2 million feeder cattle a year from the supply chain just as domestic inventories were already constrained. A limited, phased reopening through an Arizona port began in July. That matters economically, but the effect comes through disrupted trade and government policy rather than infected cattle directly raising beef prices.
The larger lesson is one commodity markets repeatedly demonstrate: a dramatic event can arrive alongside a slower structural shift, and the dramatic event usually gets the blame. The same pattern appeared when China's crude imports plunged during the Hormuz crisis, even as underlying changes in demand proved more important. Agricultural markets are especially vulnerable because biology moves slowly while prices and headlines move almost instantly.
That lag cuts both ways. A viral chocolate trend pushed pistachio demand sharply higher long before orchards could respond. Cattle face the inverse problem: demand can remain strong while the supply base takes years to recover. In both cases, markets react in days to conditions agriculture can take years to change.
The new cattle threat could become a much larger economic problem if it becomes established in Texas. Treatment, surveillance, livestock losses and renewed border restrictions would all carry costs. But that is a risk still developing, not the main explanation for today's beef prices.
The expensive steak at the supermarket is largely the delayed result of a decision ranchers began making in 2019 and repeated year after year: breed fewer cattle. Reversing that decision takes years, and initially makes the shortage worse before it makes it better.