Miramar

Invasive giant African land snail prompts quarantine in Florida county

The snail is one of the most invasive pests on the planet, causing agricultural and environmental damage, according to the FDACS.

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Parts of Broward County, Florida, are under quarantine after a giant African land snail was found earlier this month, agriculture authorities said. 

Officials “confirmed the detection” of the invasive snail species, which carries a parasite that can cause meningitis, in Miramar on June 2.

Under the quarantine order announced Tuesday, it is illegal to move the giant snails or plants, including soil, compost and yard waste, in or out of the zone without a compliance agreement from the Florida Department of Agriculture and Consumer Services.

PHI African_Giant_Snail
Academy of Natural Sciences

The snail is considered one of the most invasive pests on the planet, causing agricultural and environmental damage, according to the FDACS. They consume over 500 different types of plants and can eat the stucco off of buildings.

They also pose health risks to humans as they carry the parasite rat lungworm, which can cause meningitis in people and animals.

African land snails can grow up to eight inches long and lays thousands of eggs at a time, making the population difficult to contain.

A quarantine zone has been established in Broward County after a giant African land snail was spotted in Miramar earlier this month. NBC6's Kim Wynne reports

Experts warn not to handle the snail without gloves because of the meningitis risk.

Efforts to eradicate the snails are underway, with the FDACS spraying the pesticide metaldehyde, also known as "snail bait," in two treatment centers within the quarantine zone. Metaldehyde disrupts mucus production in snails, leaving them to dry out and die within a few days.

The pesticide is typically applied around plants or crops in order to protect them, the FDACS said. Property owners inside of the treatment centers will be notified within 24 hours of the pesticide's application.

First detected in 1969, authorities believe the giant snails likely arrived in Florida when someone brought it home to the U.S. from abroad as a pet.

Florida has successfully eradicated the giant African land snail twice before, in 1975 and 2021.

The state used Labrador retriever dogs to help curb the snail population in 2021. The USDA trained the dogs to sniff out the giant African land snails.

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