screwworm

Judy Gallagher / Flickr

Wildlife officials say endangered Key deer no longer need anti-parasite medication to fight off flesh-eating screwworms.

Self-medicating stations meant to protect the endangered Key deer from screwworm have already been removed and federal wildlife managers plan to stop medicating entirely on April 10 — assuming no new cases of the deadly parasite are found.

Screwworm was first confirmed in the Keys Sept. 30 and killed 135 Key deer, an endangered species that lives nowhere else in the world. Before the outbreak, the population was estimated at 800 to 1,000 animals.

Almost six months after the New World screwworm outbreak was identified in the Florida Keys, the state Department of Agriculture announced the lifting the animal quarantine in Monroe County. The checkpoint in Key Largo for animals leaving the Keys closed as of 7 p.m. Saturday.

National Key Deer Refuge

Wildlife officials have fitted 30 female Key deer with radio tracking collars amid a screwworm infestation threatening the endangered herd.

For the first time in 30 years, the invasive New World Screwworm has been reported in the Florida Keys. The bug and its flesh-eating larvae have been reported on the mainland.

Since September, 15 cases of the screwworm have been documented in endangered Key Deer, pigs, raccoons, cats, and dogs. In early January, the first case of the fly—and the flesh-eating larvae it produces when its eggs are hatched inside an animal—was reported in Homestead. That brings the screwworm onto the Florida mainland and just miles from Miami.

Miami-Dade Mayor Says Screwworm Limited To 1 Stray Dog

Jan 11, 2017
Judy Gallagher / Flickr

The mayor of Miami-Dade County says he'll devote "whatever resources are necessary" to protect pets and livestock on Florida's mainland from screwworms.

A stray dog in Homestead was infested with screwworm, the invasive pest that is hated and feared by the agriculture industry, state officials said Monday.

It's the first case on the mainland. Screwworm was discovered last fall in the Lower Keys, the first U.S. infestation in more than 30 years.

Since then, more than 80 million sterile screwworm flies have been released in the Lower and Middle Keys. That's the proven method for eradicating screwworm.