The Invasive Large African Land Snail Has Been Noticed in Florida


An invasive species of enormous snail that may develop as massive as a human fist and carries a parasite that may trigger meningitis has been noticed in Florida’s second-most-populous county, prompting officers to arrange a quarantine zone to attempt to comprise it.

The species, the large African land snail, was detected earlier this month in Miramar, Fla., north of Miami. On Tuesday, after finishing a survey of the world, state agriculture officers determined to position a 3.5-square-mile part of Broward County beneath quarantine.

Individuals who dwell inside that zone might come and go, however it’s unlawful to maneuver the snails in addition to any soil, particles, yard waste or crops inside or out of the quarantine space and not using a compliance settlement from the Florida Division of Agriculture and Client Companies.

African land snails thrive in heat, moist climates, underscoring the urgency of ramping up mitigation efforts, stated William Kern, an affiliate professor on the College of Florida who makes a speciality of nuisance wildlife administration.

“That is once we need to knock them down as a result of that is when they’re actually going to be cranking up their inhabitants,” Dr. Kern stated.

The large African land snail is “one of the most invasive pests on the planet,” in line with the Florida agriculture division. The snails feed on at the very least 500 kinds of crops, together with crops like candy corn, beans, lettuce and cabbage. They’ll have a devastating impact on Florida’s agriculture and pure areas “as they trigger intensive injury to tropical and subtropical environments,” the division said in a statement asserting the quarantine.

The snail additionally carries a parasite, rat lungworm, that causes meningitis in people and animals. Folks can develop into contaminated if they arrive into contact with the snail or its slime — for example by consuming unwashed greens or produce that one of many snails has touched.

Florida agriculture officers are utilizing a snail bait that comprises metaldehyde, a pesticide permitted for residential use, to kill the snails.

The large African land snail has been eradicated twice in Florida for the reason that species was first detected within the state in 1969, in line with the Florida agriculture division: first in 1975 and once more in 2021, after the snails have been detected in Miami-Dade and Broward Counties in 2011.

Final yr, nonetheless, they were spotted in Pasco County, north of Tampa, prompting a quarantine that continues to be lively. Lee County was put beneath quarantine this yr.

The agriculture division didn’t instantly present a timeline for a way lengthy it will take to eradicate the snails this time.

It’s unclear precisely how the snails made their method again to Florida. It’s potential they came visiting as stowaways on delivery containers, or as eggs in potted crops that individuals introduced residence from the Caribbean, Dr. Kern stated. Some might have additionally survived earlier mitigation makes an attempt, he stated.


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