The New World screwworm fly is threatening the $113 billion U.S. cattle industry for the first time in more than half a century, as officials race...

The New World screwworm fly is threatening the $113 billion U.S. cattle industry for the first time in more than a half century, with an infestation from its flesh-eating larvae…

Releasing sterilized flies can crash a local population of flesh-eating screwworms. But the US currently has limited capacity to produce them.