This photo shows a screwworm infestation wound on a dog. — AgriLife photo by Doug Mader
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June 11, 2025
How to detect signs of New World screwworm in animals
The name screwworm refers to the feeding behavior exhibited by the maggots as they burrow (screw) into the wound. These maggots and their feeding cause extensive damage by tearing at the hosts’ tissue with sharp mouth hooks.