New World Screwworm Fly
The new world screwworm (nws, cochliomyia hominivorax) is a parasitic fly native to the western hemisphere. The larvae (maggots) feed on the hosts flesh, causing severe wounds and often death if untreated. The pest was eradicated in the u. s. Screwworm dangers new world screwworms are the parasitic larva of a metallic blue blow fly species called cochliomyia hominivorax. Learn about the screwworm's threat to us livestock and the new world efforts to combat this pest.
Cattle and beef industry from the new world screwworm. New world screwworm (nws, cochliomyia hominivorax) is a devastating pest. When nws fly larvae (maggots) burrow into the flesh of a living animal, they cause serious, often deadly damage to the animal. Nws can infest livestock, pets, wildlife, occasionally birds, and in rare cases, people. New world screwworm (nws) is a species of parasitic flies that can cause myiasis and feed on live tissue. It primarily affects livestock, but it can also infest people. Nws is typically found in south america and the caribbean. Most fly larvae feed on dead flesh, making the new world screwworm fly and its old world counterpart in asia and africa outliers and for the american beef industry, a serious threat.
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