Signs of screwworm infection can include irritated or depressed behavior, loss of appetite, head shaking, smell of decaying ...

Screwworms can devastate livestock herds. The discovery of a single screwworm infection among cattle in Mexico a few weeks ago has raised concerns that an infestation could happen in Texas ...

The eggs hatch into painful larvae, and then maggots “screw into flesh with sharp mouth hooks” leading to a parasitic infection. TPWD officials said female screwworm flies are drawn to the ...