New World Screwworm: New World Screwworm (NWS) is a fly that can impact livestock, pets, wildlife, and rarely, people. This fly causes significant damage because its larvae feed on the living flesh, as opposed to other blow flies, that feed on the dead tissue in wounds or carcasses. If left untreated, these larvae will continue to consume flesh and eventually kill the host. Maggots in wounds are not uncommon this time of year and are commonly blowfly larvae that only feed on