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Giant Snails Take Over Florida’s Gulf Coast Again | Smart News| Smithsonian Magazine

The invasive giant African land snail—one of the most damaging snails in the world—has returned to Florida for the third time in the state’s history, according to the Florida Department of Agriculture and Consumer Services. Since their latest discovery in June, and as of late last week. officials had captured 1,434 dead and alive snails on 30 properties in Pasco County, about 40 minutes northwest of Tampa, reports CBS42’s Sam Sachs. 

The giant African land snail (Achatina (Lissachatina fulica) has a voracious appetite, eating over 500 types of plants and sometimes even consuming plaster and stucco, putting structures at risk. The snails can produce 1,200 eggs in a year and grow up to about the size of a human fist. 

They can also carry rat lungworm, which causes meningitis in humans. 

“If you see one of these snails, do not touch it,”  Florida Agriculture Commissioner Nikki Fried said at a news briefing earlier this month. “Most importantly, do not eat them. This is not a snail to be put on butter and oil and garlic.”

The snails were first found in the state in the 1960s, and it took $1 million and about seven years to get rid of them. In 2010, they were reintroduced and eradicated after a decade and $23 million. It’s unclear how the snails arrived in Florida this time; the animals are illegal to have or import in the U.S. without a permit. 

Greg Hodges, the assistant director of the state’s division of plant industry, noted in the briefing that unlike previous detections, these snails have light cream-colored bodies with a dark, mottled brown shell.

“The populations that we dealt with in the previous two eradications had dark gray to brown bodies,” he explained. “This cream colored phenotype is very common in the pet trade in Europe and has been intercepted here in Florida previously with the illegal pet trade.”

Following the first sighting this year, Florida set up a quarantine zone in the city New Port Richey, making it “unlawful to move the giant African land snail or a regulated article, including but not limited to, plants, plants parts, plants in soil, soil, yard waste, debris, compost or building materials, within, through or from a quarantine area without a compliance agreement,” per the Florida Department of Agriculture and Consumer Services website.

The properties where the snails were found will be treated with the slug and snail killer metaldehyde over the next 18 months and the area will be monitored for two years after the last snail is found, per ’s Ashley Stimpson. 

Florida will also use specially trained dogs to sniff out the invaders. 

“Because agriculture is such a prominent part of our economics in the state, it is so imperative we get in front of these things immediately,” Fried said in the briefing. “Let me assure you: We will eradicate these snails. We have done it twice before, and we will do it again – it is not a question of if, it’s just when.”

Margaret Osborne |


Margaret Osborne is a freelance journalist based in the southwestern U.S. Her work has appeared in the Sag Harbor Express and has aired on WSHU Public Radio.

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