In the 1970s, the new world screwworm (NWS), a variety of parasitic blowfly, cost the Texas agriculture industry over $330 million when an epidemic broke out across the state.
Now, after nearly half a century without a major presence in the U.S., assistant state veterinarian TR Lansford III, DVM, said producers in South Texas should be preparing for the parasite to return as outbreaks in Central Am…