Return of New World Screwworm Threatens Livestock in the U.S.
The New World Screwworm Is Back. Here’s What That Means.

Image: The New York Times
The New World screwworm, a harmful fly that targets livestock, has reappeared in the U.S. after 60 years, with an infestation found in a calf in Texas. This resurgence poses risks to cattle farmers and could increase beef prices, although officials maintain that public risk remains low.
- 01The New World screwworm was eradicated from the U.S. 60 years ago but has returned, first detected in a calf in Texas.
- 02The pest primarily affects livestock, particularly cattle, and could exacerbate pressures on farmers and drive up beef prices.
- 03Caleb Hubbard, an entomologist, warns that the screwworm's return could severely impact the livestock industry.
- 04The screwworm can also affect wildlife, pets, and occasionally humans, making its presence a broader concern.
- 05Federal and state officials are implementing measures to contain the infestation and believe public risk is low if proper guidelines are followed.
Advertisement
In-Article Ad
The New World screwworm, a parasitic fly known for infesting livestock, has resurfaced in the United States, specifically detected in a three-week-old calf in Texas. This marks a significant concern as the screwworm was eradicated from the U.S. 60 years ago following extensive control efforts. The pest has been migrating north from South America, where it remains prevalent, raising alarms about its potential impact on the livestock industry. Caleb Hubbard, an entomologist from New Mexico State University, emphasized that the screwworm could severely damage cattle farming, potentially leading to increased beef prices. Although the pest poses threats to wildlife and pets, federal and state officials assert that the risk to the general public is currently low. Agriculture Secretary Brooke Rollins highlighted the importance of collaboration and adherence to animal treatment guidelines to prevent the establishment of the screwworm in the U.S. Officials are actively working to contain the situation in Texas, hoping to mitigate the effects of this unwelcome return.
Advertisement
In-Article Ad
The return of the New World screwworm could significantly affect cattle farmers in Texas, leading to potential increases in beef prices.
Advertisement
In-Article Ad
Reader Poll
How concerned are you about the return of the New World screwworm?
Connecting to poll...
More about New Mexico State University
Read the original article
Visit the source for the complete story.





