Exotic invasive snails
Exotic invasive snails are a group of gastropods from around the globe that could arrive in Australia as hitchhikers.
They rely on people for their transport and spread by movement of machinery, equipment or other goods.
Vigilant border surveillance has prevented incursions of many exotic snail species. If they were to become established, they could negatively affect crops, natural ecosystems, and human health.
Snail species threatening Australia
Not yet present
Not yet present
These species are a high priority for surveillance and are not present in Australia, having been intercepted at the national border:
- chocolate-band snail – Massylaea vermiculata
- giant African snail – Lissachatina fulica
- golden apple or channelled snail – Pomacea canaliculata
- heath snail – Xerolenta obvia
- hygromiid snails – Monacha spp.
- lens snail – Caracollina lenticula.
Established
Established
Some exotic snails have become established in Australia, mostly of European-Mediterranean origin. These need costly field control measures and pose a threat to our access to markets:
- conical or pointed snail – Cochlicella acuta
- small pointed snail – Prietocella barbara
- white Italian snail – Theba pisana
- vineyard snail – Cernuella virgata.
Exotic snails native to Southeast Asia have gained a foothold in New South Wales and Queensland. These are unlikely to be a threat in South Australia due to our colder winters:
- Asian tramp snail – Bradybaena similaris
Importers, growers and home gardeners
Make sure you're aware of the different exotic snail characteristics and their ability to travel. Check anything coming onto your property to reduce the risk of snails or other pests spreading.