Screwworm threatening US cattle
- Posted on June 22, 2026
- By CNN
- 0 Views
- 1 min read
Screwworm threatening US cattle
A parasitic fly called the New World Screwworm is now threatening the Texas cattle industry. The US government is racing to control the spread of the fly and the parasitic eggs it deposits on animals before it kills too many cows and drives up the cost of beef.
