No immediate threat of New World screwworm affecting South Dakota, state vet says

By: Meghan O'Brien

Outlets: South Dakota Searchlight

Published: July 14, 2026

Words: 581

Last Updated: 1 week ago

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PIERRE — Flesh-eating pests spreading north into the United States have so far been kept at bay from South Dakota, but state animal industry leaders are keeping an eye on the threat.

New World screwworm cases surfaced in Texas in early June. The name “screwworm” refers to the larvae, or maggots, that burrow into open wounds, feeding as they go “like a screw being driven into wood,” according to the U.S. Department of …

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