New World screw worm detected in South Texas

1/ New World Screwworm has been confirmed in the U.S. for the first time since 1966. A 3-week-old calf in La Pryor, Texas (near the U.S.-Mexico border) tested positive. This may seem niche, but it’s a big deal. Here's what you need to know. 🧵

Not just monitoring. They closed the facility that produced sterile flies and released them in target zones to render the native population of screw worm flies ineffective in their breeding. Thank DOGE

That’s a horrifying photo of a screw worm. And what are those things on the right?

This is bad. The parasitic New World screwworm has been found inside the United States, in a calf in Texas. Announced by the USDA one day after the USDA Secretary publicly rebuked a Texas state rep for saying the parasite had advanced close to the border. www.aphis.usda.gov/news/agency-...

big deal, half the posters in this place are flesh-eating screw worms

The first U.S. case of New World Screwworm has been confirmed in Texas. New Mexico ranchers are worried.  We need to take this threat seriously NOW and do everything we can to protect our livestock, wildlife, and rural communities.

Government specializes in solving problems you've never heard of. This is a great thread of how the USG solved a gigantic problem of parasitic maggots using science and foreign aid programs--which meant that of course Trump decided to cut it. And now the screw worm is back inside American cattle.

Texas braces for 'full-blown disaster' as flesh-eating 'horror' arrives after Trump cuts www.rawstory.com/screwworm/ #PB #USD. Trump and Musk fucked Texas and Texas cattle ranchers by allowing New World Screwworm to spread to South Texas. Will Texas ranchers finally realize Trump screwed them?

The U.S. Department of Agriculture (USDA) confirmed on June 3, 2026, the first domestic case of the New World screwworm in U.S. livestock in over 60 years. The parasite was found in a three-week-old calf in Texas.

The 'Screw You Party' needed a mascot... behold... The Screw Worm *It's perfect, and a truly specific description of today's GOP

Do we know why they DOGEd the screw worm monitoring program, was that one of those things where it said like “progressive illness” and tripped a sensor or was it just one of the things they junked at random

In other news, the New World screworm has been detected in Texas, roughly 100 miles from San Antonio. Not only are hoofstock candidate hosts for the screwworm, so are wild deer. I’m concerned about the outlook of how this could impact URBAN deer that are congregated in outrageous numbers.

🧵 Today’s news that New World screwworm is in Texas is a major wakeup call, and shows how fast dangerous agricultural pests and invasive species can reach our farms and wildlife. It underscores the importance of fully funding USDA and CDC.

Texas reports New World screwworm in a 3-week-old calf. This is the first detection of larva of the parasitic fly in the US in 60 years. Read more: ow.ly/Z9VE50Z7O58 📷: USDA / John Kucharski

apnews.com/article/scre... New World screwworm fly has reached south Texas, the U.S. Department of Agriculture confirmed Wednesday. First time in decades that the parasite with flesh-eating larvae has threatened the nation’s cattle industry.